pypa-hatch/1.3/config/environment/advanced/index.html

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<!doctype html><html lang=en class=no-js> <head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=description content="Modern, extensible Python project management"><meta name=author content="Ofek Lev"><link href=https://hatch.pypa.io/latest/1.3/config/environment/advanced/ rel=canonical><link rel=icon href=../../../assets/images/favicon.ico><meta name=generator content="mkdocs-1.3.1, mkdocs-material-8.3.9"><title>Advanced - Hatch</title><link rel=stylesheet href=../../../assets/stylesheets/main.1d29e8d0.min.css><link rel=stylesheet href=../../../assets/stylesheets/palette.cbb835fc.min.css><link rel=preconnect href=https://fonts.gstatic.com crossorigin><link rel=stylesheet href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback"><style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style><link rel=stylesheet href=../../../assets/_mkdocstrings.css><link 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45.3 0 74.3 9 108.8 36 29-6.9 58.8-10 88.7-10 27 0 54.2 2.9 80.4 9.2 34-26.7 63-35.2 107.8-35.2 9.8 19.5 14.6 30.3 14.6 51.8 0 16.4-2.6 32.7-7.7 48.2 27.5 32.4 39 72.3 39 114.2zm-64.3 50.5c0-43.9-26.7-82.6-73.5-82.6-18.9 0-37 3.4-56 6-14.9 2.3-29.8 3.2-45.1 3.2-15.2 0-30.1-.9-45.1-3.2-18.7-2.6-37-6-56-6-46.8 0-73.5 38.7-73.5 82.6 0 87.8 80.4 101.3 150.4 101.3h48.2c70.3 0 150.6-13.4 150.6-101.3zm-82.6-55.1c-25.8 0-36.7 34.2-36.7 55.1s10.9 55.1 36.7 55.1 36.7-34.2 36.7-55.1-10.9-55.1-36.7-55.1z"/></svg> </div> <div class=md-source__repository> pypa/hatch </div> </a> </div> </nav> <nav class=md-tabs aria-label=Tabs data-md-component=tabs> <div class="md-tabs__inner md-grid"> <ul class=md-tabs__list> <li class=md-tabs__item> <a href=../../.. class=md-tabs__link> Home </a> </li> <li class=md-tabs__item> <a href=../../metadata/ class="md-tabs__link md-tabs__link--active"> Configuration </a> </li> <li class=md-tabs__item> <a href=../../../cli/about/ class=md-tabs__link> CLI </a> </li> <li class=md-tabs__item> <a href=../../../plugins/about/ class=md-tabs__link> Plugins </a> </li> <li class=md-tabs__item> <a href=../../../meta/faq/ class=md-tabs__link> Meta </a> </li> </ul> </div> </nav> </header> <div class=md-container data-md-component=container> <main class=md-main data-md-component=main> <div class="md-main__inner md-grid"> <div class="md-sidebar md-sidebar--primary" data-md-component=sidebar data-md-type=navigation> <div class=md-sidebar__scrollwrap> <div class=md-sidebar__inner> <nav class="md-nav md-nav--primary md-nav--lifted" aria-label=Navigation data-md-level=0> <label class=md-nav__title for=__drawer> <a href=../../.. title=Hatch class="md-nav__button md-logo" aria-label=Hatch data-md-component=logo> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M6.89 6.36C8.23 3.91 10 2 12 2c2 0 3.77 1.91 5.11 4.36-.85.21-1.61.71-2.11 1.41a3.712 3.712 0 0 0-5.2-.8c-.3.22-.58.49-.8.8-.5-.7-1.26-1.2-2.11-1.41M15 18.06l-3-3-3 3-3-3-1.27 1.27a7.504 7.504 0 0 0 9.11 5.43 7.529 7.529 0 0 0 5.43-5.43L18 15.06l-3 3m-6-2.12 3-3 3 3 3-3 1.5 1.5c-.13-2.31-.7-4.58-1.69-6.68-1.16.1-2.06 1.07-2.06 2.24h-1.5A2.25 2.25 0 0 0 12 7.75 2.25 2.25 0 0 0 9.75 10h-1.5c0-1.17-.9-2.14-2.06-2.24-.99 2.1-1.56 4.37-1.69 6.68l1.5-1.5 3 3Z"/></svg> </a> Hatch </label> <div class=md-nav__source> <a href=https://github.com/pypa/hatch title="Go to repository" class=md-source data-md-component=source> <div class="md-source__icon md-icon"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 480 512"><!-- Font Awesome Free 6.1.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M186.1 328.7c0 20.9-10.9 55.1-36.7 55.1s-36.7-34.2-36.7-55.1 10.9-55.1 36.7-55.1 36.7 34.2 36.7 55.1zM480 278.2c0 31.9-3.2 65.7-17.5 95-37.9 76.6-142.1 74.8-216.7 74.8-75.8 0-186.2 2.7-225.6-74.8-14.6-29-20.2-63.1-20.2-95 0-41.9 13.9-81.5 41.5-113.6-5.2-15.8-7.7-32.4-7.7-48.8 0-21.5 4.9-32.3 14.6-51.8 45.3 0 74.3 9 108.8 36 29-6.9 58.8-10 88.7-10 27 0 54.2 2.9 80.4 9.2 34-26.7 63-35.2 107.8-35.2 9.8 19.5 14.6 30.3 14.6 51.8 0 16.4-2.6 32.7-7.7 48.2 27.5 32.4 39 72.3 39 114.2zm-64.3 50.5c0-43.9-26.7-82.6-73.5-82.6-18.9 0-37 3.4-56 6-14.9 2.3-29.8 3.2-45.1 3.2-15.2 0-30.1-.9-45.1-3.2-18.7-2.6-37-6-56-6-46.8 0-73.5 38.7-73.5 82.6 0 87.8 80.4 101.3 150.4 101.3h48.2c70.3 0 150.6-13.4 150.6-101.3zm-82.6-55.1c-25.8 0-36.7 34.2-36.7 55.1s10.9 55.1 36.7 55.1 36.7-34.2 36.7-55.1-10.9-55.1-36.7-55.1z"/></svg> </div> <div class=md-source__repository> pypa/hatch </div> </a> </div> <ul class=md-nav__list data-md-scrollfix> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle=__nav_1 type=checkbox id=__nav_1 checked> <label class=md-nav__link for=__nav_1> Home <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav aria-label=Home data-md-level=1> <label class=md-nav__title for=__nav_1> <span class="md-nav__icon md-icon"></span> Home </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../.. class=md-nav__link> About </a> </li> <li class=md-nav__item> <a href=../../../install/ class=md-nav__link> Installation </a> </li> <li class=md-nav__item> <a href=../../../intro/ class=md-nav__link> Introduction </a> </li> <li class=md-nav__item> <a href=../../../environment/ class=md-nav__link> Environments </a> </li> <li class=md-nav__item> <a href=../../../version/ class=md-nav__link> Versioning </a> </li> <li class=md-nav__item> <a href=../../../build/ class=md-nav__link> Builds </a> </li> <li class=md-nav__item> <a href=../../../publish/ class=md-nav__link> Publishing </a> </li> <li class=md-nav__item> <a href=../../../next-steps/ class=md-nav__link> Next steps </a> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle=__nav_1_9 type=checkbox id=__nav_1_9 checked> <label class=md-nav__link for=__nav_1_9> Status <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav aria-label=Status data-md-level=2> <label class=md-nav__title for=__nav_1_9> <span class="md-nav__icon md-icon"></span> Status </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../../history/ class=md-nav__link> History </a> </li> <li class=md-nav__item> <a href=../../../users/ class=md-nav__link> Users </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--active md-nav__item--nested"> <input class="md-nav__toggle md-toggle" data-md-toggle=__nav_2 type=checkbox id=__nav_2 checked> <label class=md-nav__link for=__nav_2> Configuration <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav aria-label=Configuration data-md-level=1> <label class=md-nav__title for=__nav_2> <span class="md-nav__icon md-icon"></span> Configuration </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../metadata/ class=md-nav__link> Metadata </a> </li> <li class=md-nav__item> <a href=../../dependency/ class=md-nav__link> Dependencies </a> </li> <li class=md-nav__item> <a href=../../build/ class=md-nav__link> Build </a> </li> <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle" data-md-toggle=__nav_2_4 type=checkbox id=__nav_2_4 checked> <label class=md-nav__link for=__nav_2_4> Environments <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav aria-label=Environments data-md-level=2> <label class=md-nav__title for=__nav_2_4> <span class="md-nav__icon md-icon"></span> Environments </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../overview/ class=md-nav__link> Overview </a> </li> <li class="md-nav__item md-nav__item--active"> <input class="md-nav__toggle md-toggle" data-md-toggle=toc type=checkbox id=__toc> <label class="md-nav__link md-nav__link--active" for=__toc> Advanced <span class="md-nav__icon md-icon"></span> </label> <a href=./ class="md-nav__link md-nav__link--active"> Advanced </a> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class=md-nav__title for=__toc> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class=md-nav__list data-md-component=toc data-md-scrollfix> <li class=md-nav__item> <a href=#context-formatting class=md-nav__link> Context formatting </a> </li> <li class=md-nav__item> <a href=#matrix class=md-nav__link> Matrix </a> <nav class=md-nav aria-label=Matrix> <ul class=md-nav__list> <li class=md-nav__item> <a href=#naming class=md-nav__link> Naming </a> <nav class=md-nav aria-label=Naming> <ul class=md-nav__list> <li class=md-nav__item> <a href=#python-variables class=md-nav__link> Python variables </a> </li> <li class=md-nav__item> <a href=#name-formatting class=md-nav__link> Name formatting </a> </li> <li class=md-nav__item> <a href=#default-environment class=md-nav__link> Default environment </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=#selection class=md-nav__link> Selection </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=#option-overrides class=md-nav__link> Option overrides </a> <nav class=md-nav aria-label="Option overrides"> <ul class=md-nav__list> <li class=md-nav__item> <a href=#platform-overrides class=md-nav__link> Platform overrides </a> </li> <li class=md-nav__item> <a href=#environment-variable-overrides class=md-nav__link> Environment variable overrides </a> </li> <li class=md-nav__item> <a href=#matrix-variable-overrides class=md-nav__link> Matrix variable overrides </a> </li> <li class=md-nav__item> <a href=#types class=md-nav__link> Types </a> </li> <li class=md-nav__item> <a href=#overwriting class=md-nav__link> Overwriting </a> </li> <li class=md-nav__item> <a href=#conditions class=md-nav__link> Conditions </a> <nav class=md-nav aria-label=Conditions> <ul class=md-nav__list> <li class=md-nav__item> <a href=#allowed-values class=md-nav__link> Allowed values </a> </li> <li class=md-nav__item> <a href=#specific-platforms class=md-nav__link> Specific platforms </a> </li> <li class=md-nav__item> <a href=#required-environment-variables class=md-nav__link> Required environment variables </a> </li> </ul> </nav> </li> </ul> </nav> </li> </ul> </nav> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../../context/ class=md-nav__link> Context formatting </a> </li> <li class=md-nav__item> <a href=../../project-templates/ class=md-nav__link> Project templates </a> </li> <li class=md-nav__item> <a href=../../hatch/ class=md-nav__link> Hatch </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle=__nav_3 type=checkbox id=__nav_3 checked> <label class=md-nav__link 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class=md-nav aria-label=Matrix> <ul class=md-nav__list> <li class=md-nav__item> <a href=#naming class=md-nav__link> Naming </a> <nav class=md-nav aria-label=Naming> <ul class=md-nav__list> <li class=md-nav__item> <a href=#python-variables class=md-nav__link> Python variables </a> </li> <li class=md-nav__item> <a href=#name-formatting class=md-nav__link> Name formatting </a> </li> <li class=md-nav__item> <a href=#default-environment class=md-nav__link> Default environment </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=#selection class=md-nav__link> Selection </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=#option-overrides class=md-nav__link> Option overrides </a> <nav class=md-nav aria-label="Option overrides"> <ul class=md-nav__list> <li class=md-nav__item> <a href=#platform-overrides class=md-nav__link> Platform overrides </a> </li> <li class=md-nav__item> <a href=#environment-variable-overrides class=md-nav__link> Environment variable overrides </a> </li> <li class=md-nav__item> <a href=#matrix-variable-overrides class=md-nav__link> Matrix variable overrides </a> </li> <li class=md-nav__item> <a href=#types class=md-nav__link> Types </a> </li> <li class=md-nav__item> <a href=#overwriting class=md-nav__link> Overwriting </a> </li> <li class=md-nav__item> <a href=#conditions class=md-nav__link> Conditions </a> <nav class=md-nav aria-label=Conditions> <ul class=md-nav__list> <li class=md-nav__item> <a href=#allowed-values class=md-nav__link> Allowed values </a> </li> <li class=md-nav__item> <a href=#specific-platforms class=md-nav__link> Specific platforms </a> </li> <li class=md-nav__item> <a href=#required-environment-variables class=md-nav__link> Required environment variables </a> </li> </ul> </nav> </li> </ul> </nav> </li> </ul> </nav> </div> </div> </div> <div class=md-content data-md-component=content> <article class="md-content__inner md-typeset"> <a href=https://github.com/pypa/hatch/blob/master/docs/config/environment/advanced.md title="Edit this page" class="md-content__button md-icon"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25Z"/></svg> </a> <h1 id=advanced-environment-configuration>Advanced environment configuration<a class=headerlink href=#advanced-environment-configuration title="Permanent link">&para;</a></h1> <hr> <h2 id=context-formatting>Context formatting<a class=headerlink href=#context-formatting title="Permanent link">&para;</a></h2> <p>All environments support the following extra <a href=../../context/ >context formatting</a> fields:</p> <table> <thead> <tr> <th>Field</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>env_name</code></td> <td>The name of the environment</td> </tr> <tr> <td><code>env_type</code></td> <td>The <a href=../overview/#type>type</a> of environment</td> </tr> <tr> <td><code>matrix</code></td> <td>Its modifier selects the value of that matrix variable. If the environment is not part of a matrix or was not generated with the variable, you must specify a default value as an additional modifier e.g. <code>{matrix:version:v1.0.0}</code>.</td> </tr> <tr> <td><code>verbosity</code></td> <td>The integer verbosity value of Hatch. A <code>flag</code> modifier is supported that will render the value as a CLI flag e.g. <code>-2</code> becomes <code>-qq</code>, <code>1</code> becomes <code>-v</code>, and <code>0</code> becomes an empty string. An additional flag integer modifier may be used to adjust the verbosity level. For example, if you wanted to make a command quiet by default, you could use <code>{verbosity:flag:-1}</code> within the command.</td> </tr> <tr> <td><code>args</code></td> <td>For <a href=../../../environment/#command-execution>executed commands</a> only, any extra command line arguments with an optional default modifier if none were provided</td> </tr> </tbody> </table> <h2 id=matrix>Matrix<a class=headerlink href=#matrix title="Permanent link">&para;</a></h2> <p>Environments can define a series of matrices with the <code>matrix</code> option:</p> <div class="tabbed-set tabbed-alternate" data-tabs=1:2><input checked=checked id=__tabbed_1_1 name=__tabbed_1 type=radio><input id=__tabbed_1_2 name=__tabbed_1 type=radio><div class=tabbed-labels><label for=__tabbed_1_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_1_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test]</span><span class=w></span>
<span class=n>dependencies</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;pytest&quot;</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;27&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;38&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;38&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;39&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;9000&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>feature</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;foo&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;bar&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test]</span><span class=w></span>
<span class=n>dependencies</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;pytest&quot;</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;27&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;38&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;38&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;39&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;9000&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>feature</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;foo&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;bar&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>Doing so will result in the product of each variable combination being its own environment.</p> <h3 id=naming>Naming<a class=headerlink href=#naming title="Permanent link">&para;</a></h3> <p>The name of the generated environments will be the variable values of each combination separated by hyphens, altogether prefixed by <code>&lt;ENV_NAME&gt;.</code>. For example, the following configuration:</p> <div class="tabbed-set tabbed-alternate" data-tabs=2:2><input checked=checked id=__tabbed_2_1 name=__tabbed_2 type=radio><input id=__tabbed_2_2 name=__tabbed_2 type=radio><div class=tabbed-labels><label for=__tabbed_2_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_2_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>feature</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;foo&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;bar&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>feature</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;foo&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;bar&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>would indicate the following unique environments:</p> <div class=highlight><pre><span></span><code>test.42-foo
test.42-bar
</code></pre></div> <p>The two exceptions to this format are described below.</p> <h4 id=python-variables>Python variables<a class=headerlink href=#python-variables title="Permanent link">&para;</a></h4> <p>If the variables <code>py</code> or <code>python</code> are specified, then they will rank first in the product result and will be prefixed by <code>py</code> if the value is not. For example, the following configuration:</p> <div class="tabbed-set tabbed-alternate" data-tabs=3:2><input checked=checked id=__tabbed_3_1 name=__tabbed_3 type=radio><input id=__tabbed_3_2 name=__tabbed_3 type=radio><div class=tabbed-labels><label for=__tabbed_3_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_3_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;39&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;pypy3&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;39&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;pypy3&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>would generate the following environments:</p> <div class=highlight><pre><span></span><code>test.py39-42
test.pypy3-42
</code></pre></div> <div class="admonition note"> <p class=admonition-title>Note</p> <p>The value of this variable sets the <a href=../overview/#python-version>Python version</a>.</p> </div> <h4 id=name-formatting>Name formatting<a class=headerlink href=#name-formatting title="Permanent link">&para;</a></h4> <p>You can set the <code>matrix-name-format</code> option to modify how each variable part is formatted which recognizes the placeholders <code>{variable}</code> and <code>{value}</code>. For example, the following configuration:</p> <div class="tabbed-set tabbed-alternate" data-tabs=4:2><input checked=checked id=__tabbed_4_1 name=__tabbed_4 type=radio><input id=__tabbed_4_2 name=__tabbed_4 type=radio><div class=tabbed-labels><label for=__tabbed_4_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_4_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test]</span><span class=w></span>
<span class=n>matrix-name-format</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;{variable}_{value}&quot;</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>feature</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;foo&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;bar&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test]</span><span class=w></span>
<span class=n>matrix-name-format</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;{variable}_{value}&quot;</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>feature</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;foo&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;bar&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>would produce the following environments:</p> <div class=highlight><pre><span></span><code>test.version_42-feature_foo
test.version_42-feature_bar
</code></pre></div> <p>By default this option is set to <code>{value}</code>.</p> <h4 id=default-environment>Default environment<a class=headerlink href=#default-environment title="Permanent link">&para;</a></h4> <p>If the <code>default</code> environment defines matrices, then the generated names will not be prefixed by the environment name. This can be useful for projects that only need a single series of matrices without any standalone environments.</p> <h3 id=selection>Selection<a class=headerlink href=#selection title="Permanent link">&para;</a></h3> <p>Rather than <a href=../../../environment/#selection>selecting</a> a single generated environment, you can select the root environment to target all of them. For example, if you have the following configuration:</p> <div class="tabbed-set tabbed-alternate" data-tabs=5:2><input checked=checked id=__tabbed_5_1 name=__tabbed_5 type=radio><input id=__tabbed_5_2 name=__tabbed_5 type=radio><div class=tabbed-labels><label for=__tabbed_5_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_5_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test]</span><span class=w></span>
<span class=n>dependencies</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;coverage[toml]&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=s>&quot;pytest&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=s>&quot;pytest-cov&quot;</span><span class=p>,</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[tool.hatch.envs.test.scripts]</span><span class=w></span>
<span class=n>cov</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&#39;pytest --cov-report=term-missing --cov-config=pyproject.toml --cov=pkg --cov=tests&#39;</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;27&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;38&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test]</span><span class=w></span>
<span class=n>dependencies</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;coverage[toml]&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=s>&quot;pytest&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=s>&quot;pytest-cov&quot;</span><span class=p>,</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[envs.test.scripts]</span><span class=w></span>
<span class=n>cov</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&#39;pytest --cov-report=term-missing --cov-config=pyproject.toml --cov=pkg --cov=tests&#39;</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;27&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;38&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>you could then run your tests consecutively in all 4 environments with:</p> <div class=highlight><pre><span></span><code>hatch run test:cov
</code></pre></div> <h2 id=option-overrides>Option overrides<a class=headerlink href=#option-overrides title="Permanent link">&para;</a></h2> <p>You can modify options based on the conditions of different sources like <a href=#matrix-variable-overrides>matrix variables</a> with the <code>overrides</code> table, using <a href=https://toml.io/en/v1.0.0#table>dotted key</a> syntax for each declaration:</p> <div class="tabbed-set tabbed-alternate" data-tabs=6:2><input checked=checked id=__tabbed_6_1 name=__tabbed_6 type=radio><input id=__tabbed_6_2 name=__tabbed_6 type=radio><div class=tabbed-labels><label for=__tabbed_6_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_6_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.&lt;ENV_NAME&gt;.overrides]</span><span class=w></span>
<span class=err>&lt;</span><span class=n>SOURCE</span><span class=err>&gt;</span><span class=p>.</span><span class=err>&lt;</span><span class=n>CONDITION</span><span class=err>&gt;</span><span class=p>.</span><span class=err>&lt;</span><span class=n>OPTION</span><span class=err>&gt;</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=err>&lt;</span><span class=n>VALUE</span><span class=err>&gt;</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.&lt;ENV_NAME&gt;.overrides]</span><span class=w></span>
<span class=err>&lt;</span><span class=n>SOURCE</span><span class=err>&gt;</span><span class=p>.</span><span class=err>&lt;</span><span class=n>CONDITION</span><span class=err>&gt;</span><span class=p>.</span><span class=err>&lt;</span><span class=n>OPTION</span><span class=err>&gt;</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=err>&lt;</span><span class=n>VALUE</span><span class=err>&gt;</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>The <a href=#types>type</a> of the selected option determines the types of values.</p> <h3 id=platform-overrides>Platform overrides<a class=headerlink href=#platform-overrides title="Permanent link">&para;</a></h3> <p>Options can be modified based on the current platform using the <code>platform</code> source.</p> <div class="tabbed-set tabbed-alternate" data-tabs=7:2><input checked=checked id=__tabbed_7_1 name=__tabbed_7 type=radio><input id=__tabbed_7_2 name=__tabbed_7 type=radio><div class=tabbed-labels><label for=__tabbed_7_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_7_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>platform</span><span class=p>.</span><span class=n>windows</span><span class=p>.</span><span class=n>scripts</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&#39;run=pytest -m &quot;not io_uring&quot;&#39;</span><span class=p>,</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>platform</span><span class=p>.</span><span class=n>windows</span><span class=p>.</span><span class=n>scripts</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&#39;run=pytest -m &quot;not io_uring&quot;&#39;</span><span class=p>,</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>The following platforms are supported:</p> <ul> <li><code>linux</code></li> <li><code>windows</code></li> <li><code>macos</code></li> </ul> <h3 id=environment-variable-overrides>Environment variable overrides<a class=headerlink href=#environment-variable-overrides title="Permanent link">&para;</a></h3> <p>Environment variables can modify options using the <code>env</code> source.</p> <div class="tabbed-set tabbed-alternate" data-tabs=8:2><input checked=checked id=__tabbed_8_1 name=__tabbed_8 type=radio><input id=__tabbed_8_2 name=__tabbed_8 type=radio><div class=tabbed-labels><label for=__tabbed_8_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_8_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>env</span><span class=p>.</span><span class=n>GITHUB_ACTIONS</span><span class=p>.</span><span class=n>dev-mode</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=n>false</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;true&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>env</span><span class=p>.</span><span class=n>GITHUB_ACTIONS</span><span class=p>.</span><span class=n>dev-mode</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=n>false</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;true&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
</code></pre></div> </div> </div> </div> <h3 id=matrix-variable-overrides>Matrix variable overrides<a class=headerlink href=#matrix-variable-overrides title="Permanent link">&para;</a></h3> <p>The <a href=#matrix>matrix</a> variables used to generate each environment can be used to modify options within using the <code>matrix</code> source.</p> <div class="tabbed-set tabbed-alternate" data-tabs=9:2><input checked=checked id=__tabbed_9_1 name=__tabbed_9 type=radio><input id=__tabbed_9_2 name=__tabbed_9 type=radio><div class=tabbed-labels><label for=__tabbed_9_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_9_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;PRODUCT_VERSION&quot;</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>auth</span><span class=p>.</span><span class=n>features</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;oauth&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;oauth2&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;kerberos&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;krb5&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;27&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;38&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;legacy&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;latest&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>auth</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;oauth2&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;krb5&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;noauth&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;PRODUCT_VERSION&quot;</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>auth</span><span class=p>.</span><span class=n>features</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;oauth&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;oauth2&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;kerberos&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;kerberos&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;27&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;38&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;legacy&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;latest&quot;</span><span class=p>]</span><span class=w></span>
<span class=n>auth</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;oauth2&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;kerberos&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;noauth&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <h3 id=types>Types<a class=headerlink href=#types title="Permanent link">&para;</a></h3> <ul> <li> <p>Literal types like strings for the <a href=../overview/#python-version>Python version</a> or booleans for <a href=../overview/#skip-install>skipping installation</a> can be set using the value itself, an inline table, or an array. For example:</p> <div class="tabbed-set tabbed-alternate" data-tabs=10:2><input checked=checked id=__tabbed_10_1 name=__tabbed_10 type=radio><input id=__tabbed_10_2 name=__tabbed_10 type=radio><div class=tabbed-labels><label for=__tabbed_10_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_10_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;310&quot;</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>bar</span><span class=p>.</span><span class=n>skip-install</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=n>true</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;...&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>env</span><span class=p>.</span><span class=n>CI</span><span class=p>.</span><span class=n>dev-mode</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=n>false</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;...&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=n>true</span><span class=p>,</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;310&quot;</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>bar</span><span class=p>.</span><span class=n>skip-install</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=n>true</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;...&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>env</span><span class=p>.</span><span class=n>CI</span><span class=p>.</span><span class=n>dev-mode</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=n>false</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;...&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=n>true</span><span class=p>,</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>For arrays, the first allowed value will be used.</p> </li> <li> <p>Array types like <a href=../overview/#dependencies>dependencies</a> or <a href=../overview/#commands>commands</a> can be appended to using an array of strings or inline tables. For example:</p> <div class="tabbed-set tabbed-alternate" data-tabs=11:2><input checked=checked id=__tabbed_11_1 name=__tabbed_11 type=radio><input id=__tabbed_11_2 name=__tabbed_11 type=radio><div class=tabbed-labels><label for=__tabbed_11_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_11_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>dependencies</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;httpx&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;cryptography&quot;</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>dependencies</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;httpx&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;cryptography&quot;</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> </li> <li> <p>Mapping types like <a href=../overview/#environment-variables>environment variables</a> or <a href=../overview/#scripts>scripts</a> can have keys set using a string, or an array of strings or inline tables. For example:</p> <div class="tabbed-set tabbed-alternate" data-tabs=12:2><input checked=checked id=__tabbed_12_1 name=__tabbed_12 type=radio><input id=__tabbed_12_2 name=__tabbed_12 type=radio><div class=tabbed-labels><label for=__tabbed_12_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_12_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY=VALUE&quot;</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>bar</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;KEY1=VALUE1&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY=VALUE&quot;</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>bar</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=s>&quot;KEY1=VALUE1&quot;</span><span class=p>,</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>If the value is missing (no <code>=</code> for strings, no <code>value</code> key for inline tables), then the value will be set to the value of the source condition.</p> </li> </ul> <h3 id=overwriting>Overwriting<a class=headerlink href=#overwriting title="Permanent link">&para;</a></h3> <p>Rather than supplementing the values within mapping types or array types, you can overwrite the option as a whole by prefixing the name with <code>set-</code>:</p> <div class="tabbed-set tabbed-alternate" data-tabs=13:2><input checked=checked id=__tabbed_13_1 name=__tabbed_13 type=radio><input id=__tabbed_13_2 name=__tabbed_13 type=radio><div class=tabbed-labels><label for=__tabbed_13_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_13_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>set-platforms</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;macos&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;linux&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>foo</span><span class=p>.</span><span class=n>set-platforms</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;macos&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;linux&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <p>When overwriting entire options or keys within mappings, override sources are applied in the following order:</p> <ol> <li><a href=#platform-overrides>platform</a></li> <li><a href=#environment-variable-overrides>environment variables</a></li> <li><a href=#matrix-variable-overrides>matrix variables</a></li> </ol> <h3 id=conditions>Conditions<a class=headerlink href=#conditions title="Permanent link">&para;</a></h3> <p>You may specify certain extra keys for any inline table that will determine whether or not to apply that entry. These modifiers may be combined with others and any negative evaluation will immediately cause the entry to be skipped.</p> <h4 id=allowed-values>Allowed values<a class=headerlink href=#allowed-values title="Permanent link">&para;</a></h4> <p>The <code>if</code> key represents the allowed values for that condition. If the value of the condition is not listed, then that entry will not be applied:</p> <div class="tabbed-set tabbed-alternate" data-tabs=14:2><input checked=checked id=__tabbed_14_1 name=__tabbed_14 type=radio><input id=__tabbed_14_2 name=__tabbed_14 type=radio><div class=tabbed-labels><label for=__tabbed_14_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_14_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;pypy&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;pypy&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <h4 id=specific-platforms>Specific platforms<a class=headerlink href=#specific-platforms title="Permanent link">&para;</a></h4> <p>The <code>platform</code> key represents the desired platforms. If the current platform is not listed, then that entry will not be applied:</p> <div class="tabbed-set tabbed-alternate" data-tabs=15:2><input checked=checked id=__tabbed_15_1 name=__tabbed_15 type=radio><input id=__tabbed_15_2 name=__tabbed_15 type=radio><div class=tabbed-labels><label for=__tabbed_15_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_15_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>env</span><span class=p>.</span><span class=n>EXPERIMENTAL</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;pypy&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;1&quot;</span><span class=p>],</span><span class=w> </span><span class=n>platform</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;macos&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>],</span><span class=w> </span><span class=n>platform</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;linux&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>env</span><span class=p>.</span><span class=n>EXPERIMENTAL</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;pypy&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;1&quot;</span><span class=p>],</span><span class=w> </span><span class=n>platform</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;macos&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>],</span><span class=w> </span><span class=n>platform</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;linux&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <h4 id=required-environment-variables>Required environment variables<a class=headerlink href=#required-environment-variables title="Permanent link">&para;</a></h4> <p>The <code>env</code> key represents the required environment variables. If any of the listed environment variables are not set or the defined value does not match, then that entry will not be applied:</p> <div class="tabbed-set tabbed-alternate" data-tabs=16:2><input checked=checked id=__tabbed_16_1 name=__tabbed_16 type=radio><input id=__tabbed_16_2 name=__tabbed_16 type=radio><div class=tabbed-labels><label for=__tabbed_16_1><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> pyproject.toml</label><label for=__tabbed_16_2><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 16 16"><path fill-rule=evenodd d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0v-2.5zm7.5-.188V4.25c0 .138.112.25.25.25h2.688a.252.252 0 0 0-.011-.013l-2.914-2.914a.272.272 0 0 0-.013-.011zM5.72 6.72a.75.75 0 0 0 0 1.06l1.47 1.47-1.47 1.47a.75.75 0 1 0 1.06 1.06l2-2a.75.75 0 0 0 0-1.06l-2-2a.75.75 0 0 0-1.06 0zM3.28 7.78a.75.75 0 0 0-1.06-1.06l-2 2a.75.75 0 0 0 0 1.06l2 2a.75.75 0 0 0 1.06-1.06L1.81 9.25l1.47-1.47z"/></svg></span> hatch.toml</label></div> <div class=tabbed-content> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[tool.hatch.envs.test.overrides]</span><span class=w></span>
<span class=n>platform</span><span class=p>.</span><span class=n>windows</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;pypy&quot;</span><span class=p>,</span><span class=w> </span><span class=n>env</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;EXPERIMENTAL&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>],</span><span class=w> </span><span class=n>env</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;FOO&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;BAR=BAZ&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[tool.hatch.envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> <div class=tabbed-block> <div class=highlight><pre><span></span><code><span class=k>[envs.test.overrides]</span><span class=w></span>
<span class=n>platform</span><span class=p>.</span><span class=n>windows</span><span class=p>.</span><span class=n>python</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;pypy&quot;</span><span class=p>,</span><span class=w> </span><span class=n>env</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;EXPERIMENTAL&quot;</span><span class=p>]</span><span class=w> </span><span class=p>}</span><span class=w></span>
<span class=n>matrix</span><span class=p>.</span><span class=n>version</span><span class=p>.</span><span class=n>env-vars</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE1&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>],</span><span class=w> </span><span class=n>env</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;FOO&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;BAR=BAZ&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=w> </span><span class=p>{</span><span class=w> </span><span class=n>key</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;KEY2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>value</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=s>&quot;VALUE2&quot;</span><span class=p>,</span><span class=w> </span><span class=n>if</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w> </span><span class=p>},</span><span class=w></span>
<span class=p>]</span><span class=w></span>
<span class=k>[[envs.test.matrix]]</span><span class=w></span>
<span class=n>version</span><span class=w> </span><span class=o>=</span><span class=w> </span><span class=p>[</span><span class=s>&quot;42&quot;</span><span class=p>,</span><span class=w> </span><span class=s>&quot;3.14&quot;</span><span class=p>]</span><span class=w></span>
</code></pre></div> </div> </div> </div> <hr> <div class=md-source-file> <small> Last update: <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date">June 26, 2022</span> </small> </div> </article> </div> </div> </main> <footer class=md-footer> <nav class="md-footer__inner md-grid" aria-label=Footer> <a href=../overview/ class="md-footer__link md-footer__link--prev" aria-label="Previous: Overview" rel=prev> <div class="md-footer__button md-icon"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg> </div> <div class=md-footer__title> <div class=md-ellipsis> <span class=md-footer__direction> Previous </span> Overview </div> </div> </a> <a href=../../context/ class="md-footer__link md-footer__link--next" aria-label="Next: Context formatting" rel=next> <div class=md-footer__title> <div class=md-ellipsis> <span class=md-footer__direction> Next </span> Context formatting </div> </div> <div class="md-footer__button md-icon"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg> </div> </a> </nav> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class=md-copyright> <div class=md-copyright__highlight> Copyright &copy; Ofek Lev 2017-present </div> Made with <a href=https://squidfunk.github.io/mkdocs-material/ target=_blank rel=noopener> Material for MkDocs </a> </div> <div class=md-social> <a href=https://github.com/ofek target=_blank rel=noopener title=github.com class=md-social__link> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 480 512"><!-- Font Awesome Free 6.1.1 by @fontawesome - 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