Basemap library using Anaconda Jupyter Notebooks - KeyError: PROJ_LIB

Question

I\'m trying to install and import the Basemap library into my Jupyter Notebook, but this returns the following error:

KeyError: \'PROJ_LIB\'

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Answer 1

In Windows 10 command line: first find the directory where the epsg file is stored:

where /r "c:\Users\username" epsg.*

...

c:\Users\username\AppData\Local\conda\conda\envs\envname\Library\share\epsg

...

then either in command line:

activate envname

SET PROJ_LIB=c:\Users\username\AppData\Local\conda\conda\envs\envname\Library\share

(make sure there are no leading on trailing spaces in the path!) and then

jupyter notebook

or add this to your jupyter notebook (as suggested by john ed):

import os

os.environ['PROJ_LIB'] = r'c:\Users\username\AppData\Local\conda\conda\envs\envname\Library\share'