Python's datetime.datetime.strptime has wrong return type

[PythonCoderAS]

According to the stubs, datetime.datetime.strptime returns a datetime. However, it actually returns the type of the class. So if I subclass datetime and call the subclass's strptime method, I get back an instance of the subclass and not a datetime object, violating the return type constraint.

[srittau]

PR welcome!