Error in Ugrade from V10 to V11

trying to upgrade from V10 to V11 below is the error

If I install Gitpython 2.1.11 then it gives the error in Python-0.3.2.RC1

I have reinstalled cryptography and openssl many times, still not luck.

any help would be greate

Try this:

cd ~/.bench
~/frappe-bench/env/bin/pip install -r requirements.txt

tried that same error