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Simple Example Of Meta-class

·
Use metaclass to define the representation
of a class (not an instance).

>>> class Pretty(type):
...     def __str__(cls):
...         return ''
...     
>>> class Foo(object):
...     __metaclass__ = Pretty
...     
>>> str(Foo)
''
>>> 

Representation of an instance can be done using class.
Representation of a class can be done using meta-class.
The code is adapted from this blog post.
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