Modules not Working across different python versions
If you have 2 versions of python installed on your system, then you've somehow installed one library in each of them.
You either need to install both libraries in both versions of python (which 2 seperate versions of pip can do), or need to setup your PYTHONPATH environment variable to allow loading of modules from additional paths (like the site-packages folder of the python 2.7.4 (64bit) installation from the python 2.7.3 executable).
I have two different python programs. One of the program uses the python BeautifulSoup module, the other uses the MySQLdb module. When I run the python files individually, I have no  problem and the program run fine and give me the desired output. However I need to combine the two programs so to achieve my ultimate goal. However the Beautiful soup module only runs if I open it in python 2.7.3 and the MySQLdb runs only on the python 2.7.4 (64bit) version. I installed both the modules exactly the way it was mentioned in the docs. Any help will be much appreciated.