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<div class="section" id="examples">
<span id="id1"></span><h1>6. Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h1>
<p>This chapter provides a number of basic examples to help get started with
distutils. Additional information about using distutils can be found in the
Distutils Cookbook.</p>
<div class="admonition seealso">
<p class="admonition-title">See also</p>
<dl class="simple">
<dt><a class="reference external" href="https://wiki.python.org/moin/Distutils/Cookbook">Distutils Cookbook</a></dt><dd><p>Collection of recipes showing how to achieve more control over distutils.</p>
</dd>
</dl>
</div>
<div class="section" id="pure-python-distribution-by-module">
<span id="pure-mod"></span><h2>6.1. Pure Python distribution (by module)<a class="headerlink" href="#pure-python-distribution-by-module" title="Permalink to this headline"></a></h2>
<p>If you’re just distributing a couple of modules, especially if they don’t live
in a particular package, you can specify them individually using the
<code class="docutils literal notranslate"><span class="pre">py_modules</span></code> option in the setup script.</p>
<p>In the simplest case, you’ll have two files to worry about: a setup script and
the single module you’re distributing, <code class="file docutils literal notranslate"><span class="pre">foo.py</span></code> in this example:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>(In all diagrams in this section, <em>&lt;root&gt;</em> will refer to the distribution root
directory.) A minimal setup script to describe this situation would be:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foo&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">py_modules</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;foo&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>Note that the name of the distribution is specified independently with the
<code class="docutils literal notranslate"><span class="pre">name</span></code> option, and there’s no rule that says it has to be the same as
the name of the sole module in the distribution (although that’s probably a good
convention to follow). However, the distribution name is used to generate
filenames, so you should stick to letters, digits, underscores, and hyphens.</p>
<p>Since <code class="docutils literal notranslate"><span class="pre">py_modules</span></code> is a list, you can of course specify multiple
modules, eg. if you’re distributing modules <code class="xref py py-mod docutils literal notranslate"><span class="pre">foo</span></code> and <code class="xref py py-mod docutils literal notranslate"><span class="pre">bar</span></code>, your
setup might look like this:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">py</span>
<span class="n">bar</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>and the setup script might be</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">py_modules</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;foo&#39;</span><span class="p">,</span> <span class="s1">&#39;bar&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>You can put module source files into another directory, but if you have enough
modules to do that, it’s probably easier to specify modules by package rather
than listing them individually.</p>
</div>
<div class="section" id="pure-python-distribution-by-package">
<span id="pure-pkg"></span><h2>6.2. Pure Python distribution (by package)<a class="headerlink" href="#pure-python-distribution-by-package" title="Permalink to this headline"></a></h2>
<p>If you have more than a couple of modules to distribute, especially if they are
in multiple packages, it’s probably easier to specify whole packages rather than
individual modules. This works even if your modules are not in a package; you
can just tell the Distutils to process modules from the root package, and that
works the same as any other package (except that you don’t have to have an
<code class="file docutils literal notranslate"><span class="pre">__init__.py</span></code> file).</p>
<p>The setup script from the last example could also be written as</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">packages</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>(The empty string stands for the root package.)</p>
<p>If those two files are moved into a subdirectory, but remain in the root
package, e.g.:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">src</span><span class="o">/</span> <span class="n">foo</span><span class="o">.</span><span class="n">py</span>
<span class="n">bar</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>then you would still specify the root package, but you have to tell the
Distutils where source files in the root package live:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">package_dir</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;&#39;</span><span class="p">:</span> <span class="s1">&#39;src&#39;</span><span class="p">},</span>
<span class="n">packages</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>More typically, though, you will want to distribute multiple modules in the same
package (or in sub-packages). For example, if the <code class="xref py py-mod docutils literal notranslate"><span class="pre">foo</span></code> and <code class="xref py py-mod docutils literal notranslate"><span class="pre">bar</span></code>
modules belong in package <code class="xref py py-mod docutils literal notranslate"><span class="pre">foobar</span></code>, one way to layout your source tree is</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">foobar</span><span class="o">/</span>
<span class="fm">__init__</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">py</span>
<span class="n">bar</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>This is in fact the default layout expected by the Distutils, and the one that
requires the least work to describe in your setup script:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">packages</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;foobar&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>If you want to put modules in directories not named for their package, then you
need to use the <code class="docutils literal notranslate"><span class="pre">package_dir</span></code> option again. For example, if the
<code class="file docutils literal notranslate"><span class="pre">src</span></code> directory holds modules in the <code class="xref py py-mod docutils literal notranslate"><span class="pre">foobar</span></code> package:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">src</span><span class="o">/</span>
<span class="fm">__init__</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">py</span>
<span class="n">bar</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>an appropriate setup script would be</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">package_dir</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;foobar&#39;</span><span class="p">:</span> <span class="s1">&#39;src&#39;</span><span class="p">},</span>
<span class="n">packages</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;foobar&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>Or, you might put modules from your main package right in the distribution
root:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="fm">__init__</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">py</span>
<span class="n">bar</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>in which case your setup script would be</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">package_dir</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;foobar&#39;</span><span class="p">:</span> <span class="s1">&#39;&#39;</span><span class="p">},</span>
<span class="n">packages</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;foobar&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>(The empty string also stands for the current directory.)</p>
<p>If you have sub-packages, they must be explicitly listed in <code class="docutils literal notranslate"><span class="pre">packages</span></code>,
but any entries in <code class="docutils literal notranslate"><span class="pre">package_dir</span></code> automatically extend to sub-packages.
(In other words, the Distutils does <em>not</em> scan your source tree, trying to
figure out which directories correspond to Python packages by looking for
<code class="file docutils literal notranslate"><span class="pre">__init__.py</span></code> files.) Thus, if the default layout grows a sub-package:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">foobar</span><span class="o">/</span>
<span class="fm">__init__</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">py</span>
<span class="n">bar</span><span class="o">.</span><span class="n">py</span>
<span class="n">subfoo</span><span class="o">/</span>
<span class="fm">__init__</span><span class="o">.</span><span class="n">py</span>
<span class="n">blah</span><span class="o">.</span><span class="n">py</span>
</pre></div>
</div>
<p>then the corresponding setup script would be</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">packages</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span> <span class="s1">&#39;foobar.subfoo&#39;</span><span class="p">],</span>
<span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="single-extension-module">
<span id="single-ext"></span><h2>6.3. Single extension module<a class="headerlink" href="#single-extension-module" title="Permalink to this headline"></a></h2>
<p>Extension modules are specified using the <code class="docutils literal notranslate"><span class="pre">ext_modules</span></code> option.
<code class="docutils literal notranslate"><span class="pre">package_dir</span></code> has no effect on where extension source files are found;
it only affects the source for pure Python modules. The simplest case, a
single extension module in a single C source file, is:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="n">root</span><span class="o">&gt;/</span>
<span class="n">setup</span><span class="o">.</span><span class="n">py</span>
<span class="n">foo</span><span class="o">.</span><span class="n">c</span>
</pre></div>
</div>
<p>If the <code class="xref py py-mod docutils literal notranslate"><span class="pre">foo</span></code> extension belongs in the root package, the setup script for
this could be</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="kn">from</span> <span class="nn">distutils.extension</span> <span class="k">import</span> <span class="n">Extension</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">ext_modules</span><span class="o">=</span><span class="p">[</span><span class="n">Extension</span><span class="p">(</span><span class="s1">&#39;foo&#39;</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;foo.c&#39;</span><span class="p">])],</span>
<span class="p">)</span>
</pre></div>
</div>
<p>If the extension actually belongs in a package, say <code class="xref py py-mod docutils literal notranslate"><span class="pre">foopkg</span></code>, then</p>
<p>With exactly the same source tree layout, this extension can be put in the
<code class="xref py py-mod docutils literal notranslate"><span class="pre">foopkg</span></code> package simply by changing the name of the extension:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="kn">from</span> <span class="nn">distutils.extension</span> <span class="k">import</span> <span class="n">Extension</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span>
<span class="n">version</span><span class="o">=</span><span class="s1">&#39;1.0&#39;</span><span class="p">,</span>
<span class="n">ext_modules</span><span class="o">=</span><span class="p">[</span><span class="n">Extension</span><span class="p">(</span><span class="s1">&#39;foopkg.foo&#39;</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;foo.c&#39;</span><span class="p">])],</span>
<span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="checking-a-package">
<h2>6.4. Checking a package<a class="headerlink" href="#checking-a-package" title="Permalink to this headline"></a></h2>
<p>The <code class="docutils literal notranslate"><span class="pre">check</span></code> command allows you to verify if your package meta-data
meet the minimum requirements to build a distribution.</p>
<p>To run it, just call it using your <code class="file docutils literal notranslate"><span class="pre">setup.py</span></code> script. If something is
missing, <code class="docutils literal notranslate"><span class="pre">check</span></code> will display a warning.</p>
<p>Let’s take an example with a simple script:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>Running the <code class="docutils literal notranslate"><span class="pre">check</span></code> command will display some warnings:</p>
<div class="highlight-shell-session notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> python setup.py check
<span class="go">running check</span>
<span class="go">warning: check: missing required meta-data: version, url</span>
<span class="go">warning: check: missing meta-data: either (author and author_email) or</span>
<span class="go"> (maintainer and maintainer_email) must be supplied</span>
</pre></div>
</div>
<p>If you use the reStructuredText syntax in the <code class="docutils literal notranslate"><span class="pre">long_description</span></code> field and
<a class="reference external" href="http://docutils.sourceforge.net">docutils</a> is installed you can check if the syntax is fine with the
<code class="docutils literal notranslate"><span class="pre">check</span></code> command, using the <code class="docutils literal notranslate"><span class="pre">restructuredtext</span></code> option.</p>
<p>For example, if the <code class="file docutils literal notranslate"><span class="pre">setup.py</span></code> script is changed like this:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">setup</span>
<span class="n">desc</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span><span class="se">\</span>
<span class="s2">My description</span>
<span class="s2">==============</span>
<span class="s2">This is the description of the ``foobar`` package.</span>
<span class="s2">&quot;&quot;&quot;</span>
<span class="n">setup</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;foobar&#39;</span><span class="p">,</span> <span class="n">version</span><span class="o">=</span><span class="s1">&#39;1&#39;</span><span class="p">,</span> <span class="n">author</span><span class="o">=</span><span class="s1">&#39;tarek&#39;</span><span class="p">,</span>
<span class="n">author_email</span><span class="o">=</span><span class="s1">&#39;tarek@ziade.org&#39;</span><span class="p">,</span>
<span class="n">url</span><span class="o">=</span><span class="s1">&#39;http://example.com&#39;</span><span class="p">,</span> <span class="n">long_description</span><span class="o">=</span><span class="n">desc</span><span class="p">)</span>
</pre></div>
</div>
<p>Where the long description is broken, <code class="docutils literal notranslate"><span class="pre">check</span></code> will be able to detect it
by using the <code class="xref py py-mod docutils literal notranslate"><span class="pre">docutils</span></code> parser:</p>
<div class="highlight-shell-session notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> python setup.py check --restructuredtext
<span class="go">running check</span>
<span class="go">warning: check: Title underline too short. (line 2)</span>
<span class="go">warning: check: Could not finish the parsing.</span>
</pre></div>
</div>
</div>
<div class="section" id="reading-the-metadata">
<h2>6.5. Reading the metadata<a class="headerlink" href="#reading-the-metadata" title="Permalink to this headline"></a></h2>
<p>The <a class="reference internal" href="apiref.html#distutils.core.setup" title="distutils.core.setup"><code class="xref py py-func docutils literal notranslate"><span class="pre">distutils.core.setup()</span></code></a> function provides a command-line interface
that allows you to query the metadata fields of a project through the
<code class="docutils literal notranslate"><span class="pre">setup.py</span></code> script of a given project:</p>
<div class="highlight-shell-session notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> python setup.py --name
<span class="go">distribute</span>
</pre></div>
</div>
<p>This call reads the <code class="docutils literal notranslate"><span class="pre">name</span></code> metadata by running the
<a class="reference internal" href="apiref.html#distutils.core.setup" title="distutils.core.setup"><code class="xref py py-func docutils literal notranslate"><span class="pre">distutils.core.setup()</span></code></a> function. Although, when a source or binary
distribution is created with Distutils, the metadata fields are written
in a static file called <code class="file docutils literal notranslate"><span class="pre">PKG-INFO</span></code>. When a Distutils-based project is
installed in Python, the <code class="file docutils literal notranslate"><span class="pre">PKG-INFO</span></code> file is copied alongside the modules
and packages of the distribution under <code class="file docutils literal notranslate"><span class="pre">NAME-VERSION-pyX.X.egg-info</span></code>,
where <code class="docutils literal notranslate"><span class="pre">NAME</span></code> is the name of the project, <code class="docutils literal notranslate"><span class="pre">VERSION</span></code> its version as defined
in the Metadata, and <code class="docutils literal notranslate"><span class="pre">pyX.X</span></code> the major and minor version of Python like
<code class="docutils literal notranslate"><span class="pre">2.7</span></code> or <code class="docutils literal notranslate"><span class="pre">3.2</span></code>.</p>
<p>You can read back this static file, by using the
<code class="xref py py-class docutils literal notranslate"><span class="pre">distutils.dist.DistributionMetadata</span></code> class and its
<code class="xref py py-func docutils literal notranslate"><span class="pre">read_pkg_file()</span></code> method:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">distutils.dist</span> <span class="k">import</span> <span class="n">DistributionMetadata</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">metadata</span> <span class="o">=</span> <span class="n">DistributionMetadata</span><span class="p">()</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">metadata</span><span class="o">.</span><span class="n">read_pkg_file</span><span class="p">(</span><span class="nb">open</span><span class="p">(</span><span class="s1">&#39;distribute-0.6.8-py2.7.egg-info&#39;</span><span class="p">))</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">metadata</span><span class="o">.</span><span class="n">name</span>
<span class="go">&#39;distribute&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">metadata</span><span class="o">.</span><span class="n">version</span>
<span class="go">&#39;0.6.8&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">metadata</span><span class="o">.</span><span class="n">description</span>
<span class="go">&#39;Easily download, build, install, upgrade, and uninstall Python packages&#39;</span>
</pre></div>
</div>
<p>Notice that the class can also be instantiated with a metadata file path to
loads its values:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">pkg_info_path</span> <span class="o">=</span> <span class="s1">&#39;distribute-0.6.8-py2.7.egg-info&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">DistributionMetadata</span><span class="p">(</span><span class="n">pkg_info_path</span><span class="p">)</span><span class="o">.</span><span class="n">name</span>
<span class="go">&#39;distribute&#39;</span>
</pre></div>
</div>
</div>
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<h3><a href="../contents.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">6. Examples</a><ul>
<li><a class="reference internal" href="#pure-python-distribution-by-module">6.1. Pure Python distribution (by module)</a></li>
<li><a class="reference internal" href="#pure-python-distribution-by-package">6.2. Pure Python distribution (by package)</a></li>
<li><a class="reference internal" href="#single-extension-module">6.3. Single extension module</a></li>
<li><a class="reference internal" href="#checking-a-package">6.4. Checking a package</a></li>
<li><a class="reference internal" href="#reading-the-metadata">6.5. Reading the metadata</a></li>
</ul>
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