title: pip hangs when installing pandas after Download on RPi 3b/Raspbian
body: <p>I am trying to install Pandas on my Raspberry Pi 3b inside a VENV. However everytime I do this, after the download pip hangs:</p>
  
  <pre><code>(venv) rene@raspberrypi:~/traq $ pip --no-cache-dir install pandas
  Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
  Collecting pandas
    Downloading https://files.pythonhosted.org/packages/e9/ad/5e92ba493eff96055a23b0a1323a9a803af71ec859ae3243ced86fcbd0a4/pandas-0.23.4.tar.gz (10.5MB)
      100% |████████████████████████████████| 10.5MB 5.3MB/s
  </code></pre>
  
  <p>Before I tried to install Dash, which worked without a problem. Any ideas?</p>