os

>>> import os

>>> print(f'Hello, {os.getlogin()}! How are you?')

>>> Hello, conor_wu! How are you?

>>> print(os.path.abspath(__file__))

>>> /Users/conor_wu/PycharmProjects/GitTest/wlc-upgrade/textfsm_pr.py

>>> print(os.path.dirname(os.path.abspath(__file__)))

>>> /Users/conor_wu/PycharmProjects/GitTest/wlc-upgrade