When trying to install Shapely on my Windows 64bit computer, I cannot get the GEOS library to work.
So far, I have run the OSGeo4W installer from which I installed GDAL (I believe the geos library is included in that package). After that, I checked and I have geos_c.dll on my C:\OSGeo4W\bin directory, but either I have missed some configuration steps or the library does not work.
I need Shapely to work, so I also ran pip install shapely after installing GDAL, and it apparently worked (although it could not find the C library for GEOS).
In my code, I can import Shapely, but when I try to use it, I get an error telling me "geos.dll" is not found.
Any help with this will be very appreciated. Thanks!
For Windows users with Python installed from python.org, Christoph Gohlke maintains an excellent pool of Unofficial Windows Binaries for Python. Download the Shapely wheels for 32- or 64-bit versions of Python, which includes GEOS dependencies.
Anaconda is a popular resource to install precompiled Python packages. Shapely for win-64 is available from several of the main channels. This is a recommended method if you require lots of up-to-date Python software, and are happy to use Python from a 3rd party vendor.
see my answer here https://stackoverflow.com/a/50623996/1683626
on windows 10, python 3.6.5 64bit
- install osgeo4w
- add installed folder to path e.g. C:\OSGeo4W64\bin (must contain geos_c.dll)
- restart command line
There is an version of Shapely available here that includes geos in the installer. Look at the bottom of the page.
来源：https://stackoverflow.com/questions/13144158/python-geos-and-shapely-on-windows-64