[Tutor] How can I add my folder to pythonpath?

[Laszlo Antal]

Hi,

This is how my directory looks
myprogram    (this is the main folder for my program)
|
  myprogram.py
  mymodules  (this is where I store my modules)
      |
        mymodule1.py
        mymodule2.py

I would like to import from mymodules folder my modules1.py, 
mymodules2.py into myprogram.py.

How can I add mymodules folder to pythonpath
from myprogram.py.?
So if I copy myprogram folder into an other pc than   myprogram.py can 
take care of adding mymodules folder to pythonpath.

Thank you in advance
Laszlo Antal