[CIG-SHORT] Pylith Windows binary problem - SOLVED

[Brad Aagaard]

PyLith Windows users,

We appear to have a solution for those of you getting the error message 
"ImportError: numpy.core.multiarray failed to import."
when trying to use the PyLith Windows binary. It looks like this error 
arises from having another version of Python installed that interferes 
with the Python included with PyLith. The solution is to set your 
environment variables so that the shell doesn't see the existing Python 
when you run PyLith.

1. Double click on the PyLith icon to get the cygwin terminal window for 
Pylith.
2. Run "env >& env.log" and examine the env.log file for environment 
variables related to Python.

3. Remove all environment variables related to Python and set the PATH 
variable to the absolute minimum. For example:

unset PYTHON
unset PYTHON26
unset PYTHON27
unset PYTHONPATH
PATH=/usr/bin:/bin:/lib:/lib/lapack

4. You should now be able to use PyLith.

In general, you will need to perform steps 1 and 3 (but not 2) every 
time you run PyLith. To add these commands to the PyLith startup script, 
add the commands to the bottom of the .pylithrc file included in the 
PyLith distribution. Usually this file is in Program Files (x86)/PyLith. 
This shell script is run every time PyLith starts up.

Regards,
Brad