Biopython instructions
Python includes the Python package management tool pip, which allows an easy installation from the Command Prompt.
Open the Command Prompt as an Administrator by navigation to the Start menu, then "Windows System" folder and right click over "Command Prompt", "More" (only for Windows 10) and click "Run as Administrator" (for both Windows 7 and 10).
Finally paste the following and execute:
pip install biopython