isinstance Respects Inheritance, type() Does Not

Medium ⏱ 12 min 62% acceptance ★★★★☆ 4.3

Given class Animal and class Dog(Animal), write classify(obj) returning a tuple of two booleans: (isinstance(obj, Animal), type(obj) is Animal). For a Dog instance that is (True, False) — the interview point being that type() ignores subclassing while isinstance honors it.

Examples

Example 1

Input

classify(Dog())

Output

(True, False)

Explanation

A Dog is-an Animal by isinstance, but its exact type is Dog.

Constraints

Return exactly that tuple.
Define both classes yourself.

Topics

OOPisinstance

Companies

MicrosoftIBMOracle

Hints

Hint 1

type(obj) is Animal is an exact-class test.

Hint 2

Prefer isinstance in real code; know both for interviews.

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