A gimmick to add a path to python interpreter

python_path_gimmick.py

import os
import sys
from pathlib import Path
# Set the "./../lib" from the script folder
dir_name = None
try:
    dir_name = os.path.dirname(os.path.realpath(__file__))
except NameError:
    print("WARN: __file__ not found, trying local")
    dir_name = os.path.abspath('')
lib_path = os.path.realpath(f"{Path(dir_name).parent}/lib")
# Add to path
if lib_path not in sys.path:
    print(f"Adding library path: {lib_path} to PYTHONPATH")
    sys.path.append(lib_path)
else:
    print(f"Library path {lib_path} already in PYTHONPATH")

Allows you to add a library folder to PYTHONPATH. This is done if you want to use a library and are too lazy to create a python package out of that library.