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Python isinstance() method

The python isinstance() method returns True if the specified object is an instance or subclass; otherwise, it will return False.

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Python isinstance() method
Python isinstance() method
By khushal jethava
1 min read
Python isinstance() method

The syntax of isinstance() is:

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isinstance(object, class)

isinstance() Parameters

isinstance() method takes two parameters as arguments:

  • object - Name of the object to be checked
  • class - Type of the class.

Let us see some examples of the python isinstance() method.

Example 1: How to use the isinstance() method in python?

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class Foo:
  a = 5
  
fooInstance = Foo()

print(isinstance(fooInstance, Foo))
print(isinstance(fooInstance, (list, tuple)))
print(isinstance(fooInstance, (list, tuple, Foo)))

The Output will be as follows:

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True
False
True

Rules of isinstance()

  • True if the object is an instance or subclass of a class or any element of the tuple, False otherwise.
  • If classinfo is not a type or tuple of types, a TypeError exception is raised.
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