ModuleNotFoundError: No module named 'google.appengine'

[vanderdecken]

I have a python script that is scraping google analytics for specific information but my log is telling me that there is something wrong:
a file_cache is unavailable whe using oauth2client>=4.0.0 or google auth traceback.
File C..... _init__.py, line 36 in autodete4ct from google.appengine.api import memback
ModuleNotFoundError: No module named 'google.appengine'
After that more execption occurred..
Have installed the google app engine SDK for python.
The data extracted with this python script seems to be okay.
Any ideas why I get this error message and what to do???
hope you can help.
thanks
M