Biopython’s website mentioned that it requires Python up to version 2.7, but does not state explicitly whether Python 3+ support exists.
Is there any way to use Biopython with Python 3.2?
See: http://biopython.org/DIST/docs/install/Installation.html#sec7
Edit August 29 2015
Biopython 1.65 is fully compatible with Python 2.6, 2.7, 3.3, and 3.4
If you’re using Windows, there are officially released and supported 32-bit installation packages packages on the main website, and unofficial 64-bit installers here: http://www.lfd.uci.edu/~gohlke/pythonlibs/#biopython
Otherwise, you can download and build biopython yourself, or use
piporeasy_installto do so.See: http://biopython.org/wiki/Download