Error in Running pythonOCC: from command

I am trying to run the pythonOCC.

When I run: from OCC.Display.SimpleGui import *
It returns an error:
from: can't read /var/mail/OCC.Display.SimpleGui

Obviously there is nothing in the directory /var/mail.

I have verified that opencascade is installed and can be found in /usr/include.

It appears that the from command is used by another package, namely an e-mail package.

Thank you in advance for any help resolving this conflict.