/usr/lib/python3/dist-packages/oauthlib/oauth1/ is in python3-oauthlib 1.0.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/oauthlib/oauth1/__init__.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/__init__.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/__init__.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/access_token.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/authorization.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/base.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/pre_configured.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/request_token.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/resource.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/endpoints/signature_only.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/errors.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/parameters.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/request_validator.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/signature.py
/usr/lib/python3/dist-packages/oauthlib/oauth1/rfc5849/utils.py