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<li class="toctree-l1"><a class="reference internal" href="whatispex.html">What are .pex files?</a></li>
<li class="toctree-l1"><a class="reference internal" href="buildingpex.html">Building .pex files</a></li>
<li class="toctree-l1"><a class="reference internal" href="buildingpex.html#invoking-the-pex-utility">Invoking the <code class="docutils literal"><span class="pre">pex</span></code> utility</a></li>
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<h1>pex<a class="headerlink" href="#pex" title="Permalink to this headline">ΒΆ</a></h1>
<p>This project is the home of the .pex file, and the <code class="docutils literal"><span class="pre">pex</span></code> tool which can create them.
<code class="docutils literal"><span class="pre">pex</span></code> also provides a general purpose Python environment-virtualization solution similar to <a class="reference external" href="http://virtualenv.org">virtualenv</a>.
pex is short for “Python Executable”</p>
<p>in brief
===
To quickly get started building .pex files, go straight to <a class="reference internal" href="buildingpex.html#buildingpex"><span>Building .pex files</span></a>.
New to python packaging? Check out <a class="reference external" href="https://packaging.python.org">packaging.python.org</a>.</p>
<p>intro & history
===
pex contains the Python packaging and distribution libraries originally available through the
<a class="reference external" href="https://github.com/twitter/commons">twitter commons</a> but since split out into a separate project.
The most notable components of pex are the .pex (Python EXecutable) format and the
associated <code class="docutils literal"><span class="pre">pex</span></code> tool which provide a general purpose Python environment virtualization
solution similar in spirit to <a class="reference external" href="http://virtualenv.org">virtualenv</a>. PEX files have been used by Twitter to deploy Python applications to production since 2011.</p>
<p>To learn more about what the .pex format is and why it could be useful for
you, see <a class="reference internal" href="whatispex.html#whatispex"><span>What are .pex files?</span></a> For the impatient, there is also a (slightly outdated) lightning
talk published by Twitter University: <a class="reference external" href="http://www.youtube.com/watch?v=NmpnGhRwsu0">WTF is PEX?</a>.
To go straight to building pex files, see <a class="reference internal" href="buildingpex.html#buildingpex"><span>Building .pex files</span></a>.</p>
<p>Guide:</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="whatispex.html">What are .pex files?</a><ul>
<li class="toctree-l2"><a class="reference internal" href="whatispex.html#tl-dr">tl;dr</a></li>
<li class="toctree-l2"><a class="reference internal" href="whatispex.html#why-pex-files">Why .pex files?</a></li>
<li class="toctree-l2"><a class="reference internal" href="whatispex.html#how-do-pex-files-work">How do .pex files work?</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="buildingpex.html">Building .pex files</a></li>
<li class="toctree-l1"><a class="reference internal" href="buildingpex.html#invoking-the-pex-utility">Invoking the <code class="docutils literal"><span class="pre">pex</span></code> utility</a><ul>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#specifying-requirements">Specifying requirements</a></li>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#specifying-entry-points">Specifying entry points</a></li>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#saving-pex-files">Saving .pex files</a></li>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#tailoring-requirement-resolution">Tailoring requirement resolution</a></li>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#tailoring-pex-execution-at-build-time">Tailoring PEX execution at build time</a></li>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#tailoring-pex-execution-at-runtime">Tailoring PEX execution at runtime</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="buildingpex.html#using-bdist-pex">Using <code class="docutils literal"><span class="pre">bdist_pex</span></code></a><ul>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#bdist-pex"><code class="docutils literal"><span class="pre">bdist_pex</span></code></a></li>
<li class="toctree-l2"><a class="reference internal" href="buildingpex.html#bdist-pex-bdist-all"><code class="docutils literal"><span class="pre">bdist_pex</span> <span class="pre">--bdist-all</span></code></a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="buildingpex.html#other-ways-to-build-pex-files">Other ways to build PEX files</a></li>
<li class="toctree-l1"><a class="reference internal" href="api/index.html">PEX API Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex">Module contents</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.crawler">pex.crawler module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.environment">pex.environment module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.fetcher">pex.fetcher module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.finders">pex.finders module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.http">pex.http module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.installer">pex.installer module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.interpreter">pex.interpreter module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.iterator">pex.iterator module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.link">pex.link module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.package">pex.package module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.pep425">pex.pep425 module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.pex">pex.pex module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.pex_builder">pex.pex_builder module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.pex_info">pex.pex_info module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.platforms">pex.platforms module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.resolver">pex.resolver module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.testing">pex.testing module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.tracer">pex.tracer module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.translator">pex.translator module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#module-pex.util">pex.util module</a></li>
<li class="toctree-l2"><a class="reference internal" href="api/index.html#pex-variables-module">pex.variables module</a></li>
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