Negative form of isinstance() in Python

Just use not. isinstance just returns a bool, which you can not like any other.

That would seem strange, but:

if not isinstance(...):   ...

The isinstance function returns a boolean value. That means that you can negate it (or make any other logical operations like or or and).

Example:

>>> a="str">>> isinstance(a, str)True>>> not isinstance(a, str)False

python negate negation isinstance

Just use not, e.g.,

if not isinstance(someVariable, str):     ....

You are simply negating the "truth value" (ie Boolean) that isinstance is returning.

CodeHunter