1. Enter this websitehttp://www.lfd.uci.edu/~gohlke/pythonlibs/download

MySQL_python‑1.2.5‑cp27‑none‑win_amd64.whl

PS: There are many contents of the website, using CTRL+F shortcut keys

2. Enter the Windows CMD command line to install WHEEL

pip install wheel

PS: If the PIP does not join the environment variable, it is recommended to add the PIP to the environment variable first. PIP under the scripts folder in the Python installation directory.
3. Enter you download mysql_python‑1.2.5‑cp27‑none‑win_amd64.whl directory, and then use it

pip install MySQL_python‑1.2.5‑cp27‑none‑win_amd64.whl 

4. Verification after installation

import MySQLdb

If you do not report an error, it means that the installation is successful.