biopython no module named Bio

Question

FYI: this is NOT a duplicate!

Before running my python code I installed biopython in the cmd prompt:

pip install biopython

I then

Answer 1

In my case (MacOS X Catalina, python 3.7.6 installed by brew), I had to install it with

python -m pip install Bio

(uppercase) but use it with

from bio import pairwise2

and the worse is that I had to change the code of the package: I went into python3.7/site-packages/bio/pairwise2.py, line 246, changed

from Bio import BiopythonWarning

into

from bio import BiopythonWarning

I hate changing the code of the package, on the next update it won't work again… Please do something to fix this bio/Bio issue.