python my_script.py : run file
python --version : (-V)
PY LAUNCHER:
// python versions manager from windows
// by default py uses last version recognized on the system
py --list : list of installed versions (recognized by windows)
dir() = show files in directory
help(obj) : spiegazione dell'oggetto
dir(obj) : lista di suoi metodi
type(obj) : tipo di oggetto (int,str…)