pimento[~]$ python3
Python 3.6.6 (default, Sep 12 2018, 18:26:19)
[GCC 8.0.1 20180414 (experimental) [trunk revision 259383]] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from addEx2 import addEx
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'addEx2'
>>> import sys
>>> sys.path
['', '/usr/local/lib/python2.7/site-packages/gambit-14.1.1-py2.7-linux-x86_64.egg', '/usr/local/python', '/usr/local/lib/python2.6/site-packages', '/usr/local/lib/python2.7/site-packages', '/usr/local/pyrobot', '/usr/lib/python36.zip', '/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload', '/home/alinen/.local/lib/python3.6/site-packages', '/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages', '/usr/local/lib/python2.6/site-packages']
>>> sys.append("../w10")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'sys' has no attribute 'append'
>>> sys.path.append("../w10")
>>> from addEx2 import addEx
NAME TEST:  addEx2
>>> addEx(10,9)
19
pimento[w10]$ python3 addEx2.py
NAME TEST:  __main__
result: 15
pimento[w10]$ python3 useAdd.py
NAME TEST:  addEx2
Using add 40