Bash alias not working for Python script

Question

Trying to set a Bash alias in order to run a Python script for Pygame. I have the android.py acript in, /usr/local/bin/pgs4a-0.9.6/andoid.py .

Bash alias: alias pyg='python /usr/local/bin/pgs4a-0.9.6/android.py'

When I run python android.py when I am in the folder in executes just fine, but when I do it from any other folder or using the alias, I get the following error.

pyg
Traceback (most recent call last):
  File "/usr/local/bin/pgs4a-0.9.6/android.py", line 11, in <module>
    import interface
ImportError: No module named interface

Can anybody explain to me why this is?

Answer 1

Try this:

alias pyg='PYTHONPATH=/usr/local/bin/pgs4a-0.9.6 python /usr/local/bin/pgs4a-0.9.6/android.py'

That is, set your $PYTHONPATH environment variable to contain the directory with the code. You may need to adjust the PYTHONPATH to some other location, depending on where your interface package actually resides.