Static code analysis and corrections

backend/venv/lib/python3.6/site-packages/pandas/_libs/__init__.py

@@ -0,0 +1,9 @@
+# -*- coding: utf-8 -*-
+# flake8: noqa
+
+from .tslib import iNaT, NaT, Timestamp, Timedelta, OutOfBoundsDatetime
+
+# TODO
+# period is directly dependent on tslib and imports python
+# modules, so exposing Period as an alias is currently not possible
+# from period import Period

backend/venv/lib/python3.6/site-packages/pandas/_libs/tslibs/__init__.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+# cython: profile=False