Could not find library geos_c or load any of its variants

Question

I use python in fedora 19. I wanted to run the following line Python: import shapely.geometry the following error appears:

OSError: C

Answer 1

set the LD_LIBRARY_PATH, then run python

export LD_LIBRARY_PATH=/path_to/geos/lib:$LD_LIBRARY_PATH

python mytest.py

Answer 2

Shapely loads geos via ctypes.

Try this in your python and see if you get anything:

from ctypes.util import find_library
find_library('geos_c')

If it doesn't work, then your geos installation is probably messed up. According to this, your geos should be in /usr/lib/libgeos_c.so.1. Is your library actually there?

Answer 3

I had no problem on Jupyter Notebook but when I used PyCharm I encountered this issue. Tried multiple things windows on machine and the below troubleshooting steps fixed the issue

pip install geos

Go to PyCharm, File->Settings->Project->Project Interpreter(Check you have the right path where your python.exe file is there)->Add

Check that, on Virtualenv Environment -> Base Interpreter pointing to the right location where you have the python.exe

Same for System Interpreter->Interpreter And also Pipenv Environment -> Base Interpreter

Make sure all are pointing to the right path. I encountered this problem as I have multiple IDE and hence multiple directories where python.exe is available.They were pointing to incorrect directories.

During the troubleshooting I also uninstalled and re installed conda install shapelyas I am pointing to Anaconda directory from PyCharm. Hope it helps.

Below link is also helpful https://www.jetbrains.com/help/pycharm/installing-uninstalling-and-upgrading-packages.html#conda-package-manager

Answer 4

On Fedora install geos and geos-devel

sudo yum install geos geos-devel

Answer 5

If you're using Anaconda like I am and ran into this, copy the libgeos* files from /usr/lib to the anaconda/lib directory and try again... :) Hopefully this saves someone else, cause I have spent hours on this.

Answer 6

I had the same problem, and to solve it, you need to add the lib path to ld.so.conf file.

To do this, Open the file:

sudo vi /etc/ld.so.conf

add this line

/usr/local/lib

And then

sudo /sbin/ldconfig