In case of issues with pip after Upgrading cryptography (cbpi4 >= 4.1.7.a5)

[avollkopf]

With cbpi4 4.1.7.a4 I have changed the dependency to cryptography 40.0.0. due to a security issue with older versions of this package.

In case you are experiencing problems with pip after the upgrade, you should be able to fix the issues with the following commands:

sudo apt remove python3-pip 
wget https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py
sudo pip3 install pyopenssl
sudo pip3 install pyopenssl --upgrade

Some more information is posted here