title: Installing VTK with pip
body: <p>I'm using Python 3.7 on Arch Linux.
  I've been trying to install Mayavi with pip but it always fails when installing vtk. So I found out that even when trying to install vtk by itself via pip <a href="https://pypi.org/project/vtk/" rel="nofollow noreferrer">(which should work)</a> that vtk is really not installing. I get this error:</p>
  
  <pre><code>$ sudo pip3 install vtk
  Collecting vtk
    Could not find a version that satisfies the requirement vtk (from versions: )
  No matching distribution found for vtk
  </code></pre>
  
  <p>This seems like a very dumb error on my part, but I really can't understand what's going on. VTK should be <a href="https://blog.kitware.com/vtk-7-0-0/" rel="nofollow noreferrer">compatible with Py3 now</a> as far as I know. <code>pip</code> was installed with <code>get-pip.py</code> and everything else has always worked perfectly.</p>
  
  <p>Curiously enough, <code>pip2 install vtk mayavi</code> works.</p>
  
  <p>Any ideas?</p>
  
  <p>PS.: I'm avoiding creating a separate environment for work-related issues.</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>I did the manual approach:</p>
  
  <pre><code>$ wget https://pypi.python.org/packages/13/7f/735fbc0dd78c91ad3693cfdfe5c91603899fc8e24909f935d46d2fde6559/vtk-8.1.0-cp27-cp27mu-manylinux1_x86_64.whl
  $ sudo pip3 install vtk-8.1.0-cp27-cp27mu-manylinux1_x86_64.whl
  vtk-8.1.0-cp27-cp27mu-manylinux1_x86_64.whl is not a supported wheel on this platform.
  </code></pre>
  
  <p>Which I don't know what's causing. I've tried to follow <a href="https://stackoverflow.com/questions/49053131/failure-installing-vtk-from-pypi-on-x86-64">this answer</a> but I can't make the first <code>pep</code> command work.</p>