Raymond Hettinger <rhettin...@users.sourceforge.net> added the comment:
class Prepared(type):
'Preload the class with a reference to itself'
@classmethod
def __prepare__(mcl, name, bases):
return {name: type(name, bases, {})}
def __new__(mcl, name, bases, mapping):
tmpcls = super().__new__(mcl, name, bases, mapping)
deferred_class = mapping[name]
deferred_class.__dict__.update(tmpcls.__dict__) # XXX need writeable
dict_proxy
return deferred_class
class Graph(metaclass=Prepared):
def reverse(self) -> Graph:
...
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11339>
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