I have scowered stack overflow all day today trying to figure out why when I try to install cython 
unable to execute gcc-4.0: No such file or directory
error: command 'gcc-4.0' failed with exit status 1
I am using OSX mountain lion and I am using default python with pygame and easygui and command line tools installed trying to make my first app using kivy and I need cython to make the gui.. Are there any other things I should use instead of Kivy but I am pretty impressed from what I saw online. If anyone has any other tips on installing Kivy? I am very lost doing this sorry for a trivial question!
Which python are you using, the system python or macports or something else?  
Make sure you have XCode and gcc installed on your system first.  Running which gcc on the command line will help identify where your current version of gcc resides.  I assume you already checked this?  
As an alternative, you can try installing a precompiled version of cython such as the one that comes with anaconda or the enthought python distribution.
Unfortunately, there's not enough information here to give a definitive answer.....
When I try to install cython I get an error message unable to execute gcc-4.0