import from containing folder

[David Isaac]

Suppose I have inherited the structure

PackageFolder/
      __init__.py
      mod1.py
      mod2.py
      SubPackageFolder/
              __init__.py
              mod3.py

and mod3.py should really use a function in mod2.py.
*Prior* to Python 2.5, what is the best way to access that?
(Please assume that "move it" is not the answer.)

Thanks,
Alan Isaac


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