These are the list of the versions of a package that is available in pip:-
If your system has pip version 9.9 you can use:-
pip install pylibmc==blork
Here, blork can be any string that should not be an install candidate.
Another package that pip has which is better than others is yolk. For example, if you want to see what version of Django is available in your system you would so something which is mentioned in the command written below:
$ pip install yolk3k
$ yolk -V django