Please change python required version to >= 3.8 instead of 3.7

[swaelali]

The new assignment syntax := introduced in Python 3.8
https://docs.python.org/3.8/whatsnew/3.8.html

[jongwook]

Good point! will fix shortly. Python 3.7 support was intentionally dropped in:

• drop python 3.7 support #889