Two SettingsDict should be equal if they refer to the same internal settings

[Thom1729]

A sublime.Settings object has a numeric settings_id that it passes to the internal API. Two Settings with the same settings_id are interchangeable for all practical purposes. By extension, the same is true for SettingsDict objects. Should SettingsDict reflect this?:

def __eq__(self, other):
    return isinstance(other, SettingsDict) and self.settings.settings_id == other.settings.settings_id

Under this implementation, SettingsDict and NamedSettingsDict objects could compare equal. I don't have a strong opinion on whether they should; perhaps not, since they're not interchangeable objects.

(Also: __hash__?)

[FichteFoll]

Sounds like a good addition to me.

__hash__ cannot be implemented for mutable types.