On Python3, parse_qsl fails while decoding string to UTF8.
and Exception is raised when we run parse_qsl.

However in python3, urllib.parse module provides same function which works fine when compiled with python3.

signature of parse_qsl method from _apachemodule.c and urllib.parse is same and both provides same functionality.

Hence adding parse_qsl function from urllib.parse module as a fallback if an exception is raised from parse_qsl method from _apachemodule.c