Cannot fetch index base URL https://pypi.python.org/simple/
I checked my pip version using the following command:
$pip --version and the output is 1.5.4.
I googled little bit about it and saw this nice post at http://stackoverflow.com/questions/17416938/pip-cannot-install-anything
I followed this exactly and installed pip version 1.2.1 and checked the path where it is installed. For instance my earlier pip version is not over written and it is installed in a separate place, then calling pip will still use it from the previous location.
So, I did the following:
/usr/local/bin/pip install biopython and it worked like a charm.