display log information in terminal

　　offical website note:

# import the logging library

import logging

# Get an instance of a logger
logger = logging.getLogger(__name__)

def my_view(request, arg1, arg):
    ...
    if bad_mojo:
        # Log an error message
        logger.error('Something went wrong!')

　　but it not display log info in terminal. i donit why. but i hear that use 'print' is simple.

def my_view(request, arg1, arg):
    ...
    if bad_mojo:
        # Log  error message
        print 'Something went wrong!'

　　through my test, it works well.