How do I put a variable inside a String in Python?

[Larz60+]

if python 3.6 or newer, use f-string:

>>> tmp = '12345'
>>> cmd3 = f"wmic process where processId = {tmp} get name | findstr /v Name"
>>> cmd3
'wmic process where processId = 12345 get name | findstr /v Name'
>>>