擅长:python、mysql、java
<p>参见<a href="https://virtualenv.pypa.io/en/latest/virtualenv.html#the-system-site-packages-option" rel="nofollow">documentation - The system-site-packages Option</a>:</p>
<blockquote>
<p>If you build with <code>virtualenv system-site-packages ENV</code>, your virtual
environment <em>will inherit packages from
/usr/lib/python2.7/site-packages</em> (or wherever your global
site-packages directory is).</p>
<p>This can be used if you have control over the global site-packages
directory, and you want to depend on the packages there. If you want
isolation from the global system, do not use this flag.</p>
</blockquote>
<p>这些库已安装在您的系统中。除非指定<code> no-site-packages</code>,否则它们将被继承。在</p>