Installing specific package versions with pip

Question

I\'m trying to install version 1.2.2 of the MySQL_python adaptor, using a fresh virtualenv created with the --no-site-packages option. The current version shown

Answer 1

Sometimes, the previously installed version is cached.

~$ pip install pillow==5.2.0

It returns the followings:
Requirement already satisfied: pillow==5.2.0 in /home/ubuntu/anaconda3/lib/python3.6/site-packages (5.2.0)

We can use --no-cache-dir together with -I to overwrite this

~$ pip install --no-cache-dir -I pillow==5.2.0