title: PyQt4, PyQt5 or PySide for Matplotlib on Archlinux
body: <p>I cannot use matplotlib anymore (on python 3.5, archlinux, kde). After a system update with pacman I got an error that PySide is not installed. When I unsuccessfully tried to install it using pip3, I found out that since PySide version 1.2.4, python 3.5 is explicitly unsupported. So after some research, I found out that PyQt4 or PyQt5 should work as well. When I try to install PyQt4 or 5 with pip3, I get the following message</p>
  
  <pre><code>$ sudo pip3 install PyQt5
  Collecting PyQt5
  Could not find a version that satisfies the requirement PyQt5 (from versions: )
  No matching distribution found for PyQt5
  </code></pre>
  
  <p>qmake --version returns</p>
  
  <pre><code>$ qmake --version
  QMake version 3.0
  Using Qt version 5.5.1 in /usr/lib
  </code></pre>
  
  <p>Does anybody know a solution to this problem?</p>