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+--- Thread: comparing types (/thread-27866.html)
comparing types - Skaperen - Jun-25-2020
my function gets 2 arguments, foo and bar. they need to be the same type. verifying this is pretty obvious:
if type(foo) is type(bar):
...or should i use == instead of is? is this the right way to go (ignoring those who say i should only support one type)?
RE: comparing types - Gribouillis - Jun-25-2020
It is the right way to go. Observe that it will also return False if for example
type(foo) is a subclass of type(bar)
RE: comparing types - Skaperen - Jun-26-2020
isinstance(foo,type(bar)) ?
RE: comparing types - Gribouillis - Jun-26-2020
Now you are changing the specifications. What if bar has a subtype of type(foo)?
RE: comparing types - DeaD_EyE - Jun-26-2020
There is a
issubclass built-in.class Bar: ... class Foo(Bar): ... foo_inst = Foo() bar_inst = Bar() type(bar_inst) in type(foo_inst).mro() # but easier is the subclasscheck issubclass(type(foo_inst), type(bar_inst))
RE: comparing types - Skaperen - Jun-26-2020
(Jun-26-2020, 07:08 AM)Gribouillis Wrote: Now you are changing the specifications. What if bar has a subtype of type(foo)?
if either is a subtype of the other. i'll have to decide if that should be considered the same. i need another value for bool ... Maybe. if i make this into a function, it could return 3 different int values.