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  1. class Foo:
  2.     def __call__(self, event_name, *args, **kwargs):
  3.         fn = getattr(self, 'handle_{}'.format(event_name))
  4.         return fn(*args, **kwargs)
  5.  
  6.     def handle_foo(self):
  7.         print('foo')
  8.  
  9.     def handle_bar(self, x):
  10.         print('bar', x)
  11.  
  12. dispatch = Foo()
  13. dispatch('foo')
  14. dispatch('bar', 42)
  15. dispatch('whatever')
Runtime error #stdin #stdout #stderr 0.02s 9936KB
comments (?)
stdin 
Standard input is empty
stdout 
foo
bar 42
stderr 
Traceback (most recent call last):
  File "./prog.py", line 15, in <module>
  File "./prog.py", line 3, in __call__
AttributeError: 'Foo' object has no attribute 'handle_whatever'
https://ideone.com/UOLfuA
language:
Python 3 (python  3.9.5)
created:
8 years ago
visibility:
secret

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