The error that I'm facing is: File "/usr/local/lib/python3.5/dist-packages/oauth2client/crypt.py", line 23, in <module> from oauth2client import _pure_python_crypt File "/usr/local/lib/python3.5/dist-packages/oauth2client/_pure_python_crypt.py", line 24, in <module> from pyasn1_modules.rfc2459 import Certificate File "/usr/local/lib/python3.5/dist-packages/pyasn1_modules/rfc2459.py", line 20, in <module> from pyasn1.type import opentype ImportError: cannot import name 'opentype' Which I thought was resolved by following the instructions in this stackoverflow answer: sudo apt-get --reinstall install python-pyasn1 python-pyasn1-modules pip3 install --upgrade google-auth-oauthlib When I run my program via supervisorctl, sudo supervisorctl restart at_ussd I get the error above. However when I run my program via shell sudo python3 at_ussd.py, the program runs smoothly. Please help me resolve this so that I can continue using supervisor for management! Continue reading...