Fix time functions would throw errors in python scripts (#11414)

* Fix time functions would throw errors in python scripts

* Added unit test for time.strptime, change variable name to satisfy lint

* Added docstring for time attribute wrapper method to satisfy lint

* Fixed line too long lint problem

homeassistant/components/python_script.py

@@ -202,4 +202,11 @@ class TimeWrapper:
 
     def __getattr__(self, attr):
         """Fetch an attribute from Time module."""
-        return getattr(time, attr)
+        attribute = getattr(time, attr)
+        if callable(attribute):
+            def wrapper(*args, **kw):
+                """Wrapper to return callable method if callable."""
+                return attribute(*args, **kw)
+            return wrapper
+        else:
+            return attribute