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<div class="section" id="pip-hash">
<span id="id1"></span><h1><a class="toc-backref" href="#id2">pip hash</a><a class="headerlink" href="#pip-hash" title="Permalink to this headline">¶</a></h1>
<div class="contents topic" id="contents">
<p class="topic-title first">Contents</p>
<ul class="simple">
<li><a class="reference internal" href="#pip-hash" id="id2">pip hash</a><ul>
<li><a class="reference internal" href="#usage" id="id3">Usage</a></li>
<li><a class="reference internal" href="#description" id="id4">Description</a><ul>
<li><a class="reference internal" href="#overview" id="id5">Overview</a></li>
</ul>
</li>
<li><a class="reference internal" href="#options" id="id6">Options</a></li>
<li><a class="reference internal" href="#example" id="id7">Example</a></li>
</ul>
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<div class="section" id="usage">
<h2><a class="toc-backref" href="#id3">Usage</a><a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h2>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">pip</span> <span class="nb">hash</span> <span class="p">[</span><span class="n">options</span><span class="p">]</span> <span class="o"><</span><span class="n">file</span><span class="o">></span> <span class="o">...</span>
</pre></div>
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<div class="section" id="description">
<h2><a class="toc-backref" href="#id4">Description</a><a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p><p>Compute a hash of a local package archive.</p>
<p>These can be used with –hash in a requirements file to do repeatable
installs.</p>
</p>
<div class="section" id="overview">
<h3><a class="toc-backref" href="#id5">Overview</a><a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h3>
<p><code class="docutils literal"><span class="pre">pip</span> <span class="pre">hash</span></code> is a convenient way to get a hash digest for use with
<a class="reference internal" href="pip_install.html#hash-checking-mode"><span class="std std-ref">Hash-Checking Mode</span></a>, especially for packages with multiple archives. The
error message from <code class="docutils literal"><span class="pre">pip</span> <span class="pre">install</span> <span class="pre">--require-hashes</span> <span class="pre">...</span></code> will give you one
hash, but, if there are multiple archives (like source and binary ones), you
will need to manually download and compute a hash for the others. Otherwise, a
spurious hash mismatch could occur when <a class="reference internal" href="pip_install.html#pip-install"><span class="std std-ref">pip install</span></a> is passed a
different set of options, like <a class="reference internal" href="pip_install.html#install-no-binary"><span class="std std-ref">–no-binary</span></a>.</p>
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<div class="section" id="options">
<h2><a class="toc-backref" href="#id6">Options</a><a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
<p><span class="target" id="hash-algorithm"></span><dl class="option">
<dt id="cmdoption-a">
<code class="descname">-a</code><code class="descclassname"></code><code class="descclassname">, </code><code class="descname">--algorithm</code><code class="descclassname"> <algorithm></code><a class="headerlink" href="#cmdoption-a" title="Permalink to this definition">¶</a></dt>
<dd><p>The hash algorithm to use: one of sha256, sha384, sha512</p>
</dd></dl>
</p>
</div>
<div class="section" id="example">
<h2><a class="toc-backref" href="#id7">Example</a><a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h2>
<p>Compute the hash of a downloaded archive:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>$ pip download SomePackage
Collecting SomePackage
Downloading SomePackage-2.2.tar.gz
Saved ./pip_downloads/SomePackage-2.2.tar.gz
Successfully downloaded SomePackage
$ pip hash ./pip_downloads/SomePackage-2.2.tar.gz
./pip_downloads/SomePackage-2.2.tar.gz:
--hash=sha256:93e62e05c7ad3da1a233def6731e8285156701e3419a5fe279017c429ec67ce0
</pre></div>
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