Cartopy and Basemap wheels are broken on macOS

[daniviga]

It complains about libgeos and goes into segfault

To reproduce:

pip install http://ftp.openquake.org/wheelhouse/macos/py35/Shapely-1.6.4.post1-cp35-cp35m-macosx_10_9_intel.macosx_10_9_x86_64.whl
pip install http://ftp.openquake.org/wheelhouse/macos/py35/matplotlib-2.1.2-cp35-cp35m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl
pip install http://cdn.ftp.openquake.net/wheelhouse/macos/py35/Cartopy-0.16.0-cp35-cp35m-macosx_10_6_intel.whl

import cartopy.crs as ccrs
import matplotlib.pyplot as plt

ax = plt.axes(projection=ccrs.PlateCarree())
ax.coastlines()

plt.show()

import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap as Basemap

llon, ulon, llat, ulat = (94.0000,142.0000, -11.986, 8.0000)
m = Basemap(llon,llat,ulon,ulat,projection='merc')

[daniviga]

That's a DLL hell:

SciTools/cartopy#805
SciTools/cartopy#738
shapely/shapely#416
shapely/shapely#553

Shapely is altering libgeos' symbols on the fly causing segfaults when another code is loading the original library.