diff options
Diffstat (limited to 'Lib/enum.py')
| -rw-r--r-- | Lib/enum.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Lib/enum.py b/Lib/enum.py index c3a0a8b4a9..99db9e6b7f 100644 --- a/Lib/enum.py +++ b/Lib/enum.py @@ -550,8 +550,14 @@ class Enum(metaclass=EnumMeta): source = vars(source) else: source = module_globals - members = {name: value for name, value in source.items() - if filter(name)} + # We use an OrderedDict of sorted source keys so that the + # _value2member_map is populated in the same order every time + # for a consistent reverse mapping of number to name when there + # are multiple names for the same number rather than varying + # between runs due to hash randomization of the module dictionary. + members = OrderedDict((name, source[name]) + for name in sorted(source.keys()) + if filter(name)) cls = cls(name, members, module=module) cls.__reduce_ex__ = _reduce_ex_by_name module_globals.update(cls.__members__) |