If you are receiving this information message via the logs:

"googleapiclient.discovery_cache INFO file_cache is only supported with oauth2client<4.0.0"

Then you need to add the "static_discovery=False" option to your API build method.

This is an info message & it does not interfere with the execution while the code is in Python form. But if you convert to .exe; for some reason it prevents the method from execution.