You can create new enum type using Enum functional API:
In [1]: import enum
In [2]: DynamicEnum = enum.Enum('DynamicEnum', {'foo':42, 'bar':24})
In [3]: type(DynamicEnum)
Out[3]: enum.EnumMeta
In [4]: DynamicEnum.foo
Out[4]: <DynamicEnum.foo: 42>
In [5]: DynamicEnum.bar
Out[5]: <DynamicEnum.bar: 24>
In [6]: list(DynamicEnum)
Out[6]: [<DynamicEnum.foo: 42>, <DynamicEnum.bar: 24>]