Update a package by easy_install
<p>I'm new to python. I would like to install the latest version of mitmproxy(0.17.1). The current version installed on the system is 0.15. When I do </p>

<pre><code>easy_install -U mitmproxy 
</code></pre>

<p>It says:</p>

<pre><code>Reading https://pypi.python.org/simple/mitmproxy/
Best match: mitmproxy 0.15
Processing mitmproxy-0.15-py2.7.egg
mitmproxy 0.15 is already the active version in easy-install.pth
</code></pre>

<p>So it can not find the latest version and when I do:</p>

<pre><code>easy_install  'mitmproxy==0.17.1'
</code></pre>

<p>I get :</p>

<pre><code>No local packages or download links found for mitmproxy==0.17.1
</code></pre>

<p>Why can't it find the latest version? What should I do to install the latest one?</p>