fatal python error: pythreadstate_get: no current thread

Question

Problem :

 When I open python and enter import mapnik, the following error comes and python exits:

>>> import mapnik
Fatal Python error: PyThreadState_Get: no current thread
Abort trap: 6

Answer 1

I have faced the same problem between python27-apple and python27. 

I followed bellow steps and it worked for me:

sudo port select --list python

Then,

sudo port select python python27-apple

 To double check,

sudo port select --list python

And the python crash had gone when I ran the scripts.

Further Readings:

https://github.com/facebookarchive/caffe2/issues/854