How to see who and what wrote to the Telegram bot? getUpdates only returns - {"ok":true,"result":[]}

How to remove every second line from a file in Python?

, to transparently create a temporary file, to perform in-place modification:

#!/usr/bin/env python3import fileinputimport oswith fileinput.FileInput(filename, inplace=True, backup='.bak') as file:    for i, line in enumerate(file, start=1):        if i & 1: # odd             print(line, end='')