擅长:python、mysql、java
<p>我只回答你问题的这一部分:</p>
<blockquote>
<p>how to install two separate versions of pylint side by side, either in
the OS as a whole…</p>
</blockquote>
<p>我已经有了一个现有的pylint安装(大概是从pip with python2获得的),在<code>/usr/local/bin/pylint</code>和pip python3安装在同一个目录中。在</p>
<p>所以我做了以下几点:</p>
<pre><code>cp /usr/local/bin/pylint ~/Back/
pip3 install pylint
mv /usr/local/bin/pylint /usr/local/bin/pylint3
cp ~/Back/pylint /usr/local/bin/pylint
</code></pre>