gchina

"""
This module provides a decorator that can be added to any function to provide
debug output that shows the values of the arguments passed in as well as the
return value.  If a Logger object is passed in to the decorator, all debug
output will go to that Logger object.  Otherwise, the output will go to the
default Logger object.

Tip: If using the default Logger object, don't forget to set the logging level
     to DEBUG if you want to see output on stdout.