Check if a directory contains a file with a given extension

Question

I need to check the current directory and see if a file with an extension exists. My setup will (usually) only have one file with this extension. I need to check if that fil

Answer 1

If you only want to check that any file ends with a particular extension, use any.

import os
if any(File.endswith(".true") for File in os.listdir(".")):
    print("true")
else:
    print("false")