Is there a way in a huge python file , you just see the function def you are interested in ? I remember Eclipse has an option to do this in Java and it was pretty helpful.How about for Python in PyDev/Aptana Studio 3?
Look in Window > Preferences > PyDev > Editor > Code Folding. Enable Folding for Function Definitions. Then hit Ctrl-9 and Ctrl-0 to fold and unfold your code.
Edit: You can also use Ctrl-- (minus) and Ctrl-= to fold and unfold single levels.
Show only python function def in PyDev Eclipse/Aptana