>>> my_dict[nan] = 3 >>> my_dict[nan] 3
I guess because the hash of an instance stays consistent (which is used to retrieve the value from the dict). The `__eq__` method must disregard the hash and return False for all nans.
alt Hacker News
I guess because the hash of an instance stays consistent (which is used to retrieve the value from the dict). The `__eq__` method must disregard the hash and return False for all nans.