[Python-Dev] PEP 520: Ordered Class Definition Namespace (original) (raw)

Franklin? Lee leewangzhong+python at gmail.com
Wed Jun 8 03:07:26 EDT 2016

On Jun 7, 2016 8:52 PM, "Eric Snow" <ericsnowcurrently at gmail.com> wrote:

* the default class definition namespace is now OrderdDict * the order in which class attributes are defined is preserved in the

By using an OrderedDict, names are ordered by first definition point, rather than location of the used definition.

For example, the definition order of the following will be "x, y", even though the definitions actually bound to the name are in order "y, x". class C: x = 0 def y(self): return 'y' def x(self): return 'x'

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