#Enter python interpreter.
python
#Exit python interpreter.
exit()
#Help page on modules or inbuilt functions.
help()
Tip: Enter module or function name in the parentheses
#Create virtual environment in current folder.
python -m venv ./venv
#Activate virtual environment in current directory.
source .venv/bin/activate
#Exit virtual environment.
deactivate
#Run python script from IDLE.
exec(open('path/to/file or filename').read())
#Redirect the modules and dependencies installed to requirements.txt.
pip3 freeze > requirements.txt