def example_3():
def success_handler(*args, **kwargs):
print 'success handler'
print args, kwargs
with ErrorManager.for_all(on_success=success_handler):
d = {'item': 0}
d['item']
def example_2():
def default_error_handler(*args, **kwargs):
print 'defaul handler'
print args, kwargs
with ErrorManager.for_all(on_default=default_error_handler):
d = {}
d['fake_item']
