When I try running vim in the Terminal (so as to follow @romainl's suggestion in my other question) I get lots of Python errors, which all boil down to:

IOError: invalid Python installation: unable to open /usr/include/python2.7/pyconfig.h (No such file or directory)

Why is this? I can use Python or Sublime Text even, without any problems.

The full list of errors is the following:

Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site.py", line 565, in <module>
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site.py", line 547, in main
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site.py", line 278, in addusersitepackages
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site.py", line 253, in getusersitepackages
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site.py", line 243, in getuserbase
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sysconfig.py", line 523, in get_config_var
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sysconfig.py", line 419, in get_config_vars
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sysconfig.py", line 298, in _init_posix
IOError: invalid Python installation: unable to open /usr/include/python2.7/pyconfig.h (No such file or directory)

Extra info:
I am on Mac OS X Mountain Lion (OS 10.8)

EDIT:
I tried @BobDunakey idea with no success, the idea was to use sudo. I still get the same errors.

EDIT 2:
I was able to solve the problem thanks to Zirak's solution, which is the following: http://clearfix.be/2012/08/05/fix-mountain-lion-10-8-python-ioerror-pyconfig-h-error/