Python Version Issues With 2.7

Python Version Issues With 2.7

I am Mac user and I have been using 2.6 for quiet sometime. And I had to
upgrade it to 2.7 for some reason. Now it keeps throwing some packages
aren't available like httplib2 etc.,
when I checked in /usr/lib/ i see only 2.5 and 2.6 folders. I dont see 2.7
in there but 2.7 files are here
"/Library/Frameworks/Python.framework/Versions/2.7/lib/Python2.7 So I
added the path as well..but nothing seems to work.I am very poor with
configuring the environment variable
PATH="/Library/Frameworks/Python.framework/Versions/2.7/bin:${PATH}"
export PATH