title: How to deal with segmentation fault when running samples from cartopy documentation?
body: <p>On running any of cartopy examples (or any code for plotting purpose using pyplot and cartopy) system returns Segmentation fault</p>
  
  <p>I have already tried the solution listed here: <a href="https://stackoverflow.com/questions/52374356/cartopy-examples-produce-a-segmentation-fault">Cartopy examples produce a Segmentation fault</a></p>
  
  <pre><code>pip uninstall shapely
  pip install --no-binary :all: shapely
  </code></pre>
  
  <p>When I tried running this basic example:</p>
  
  <pre><code>import cartopy.crs as ccrs
  import matplotlib.pyplot as plt
  
  ax = plt.axes(projection=ccrs.PlateCarree())
  ax.coastlines()
  
  plt.show()
  </code></pre>
  
  <p>This is the log:</p>
  
  <pre><code>(python:19052): Gtk-WARNING **: 21:40:45.891: Theme parsing error: gtk.css:11546:3: '/*' in comment block
  
  (python:19052): Gtk-WARNING **: 21:40:45.891: Theme parsing error: gtk.css:11652:2: '/*' in comment block
  Segmentation fault (core dumped)
  </code></pre>