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  1. Python isinstance () Function - W3Schools

    The isinstance () function returns True if the specified object is of the specified type, otherwise False. If the type parameter is a tuple, …

  2. isinstance () method - Python - GeeksforGeeks

    Jul 11, 2025 · isinstance () is a built-in Python function that checks whether an object or variable is an instance of a specified type or …

  3. isinstance() | Python’s Built-in Functions – Real Python

    What Does isinstance () Do in Python? Learn what isinstance () does in Python and how to use this built-in function to check an …

  4. Built-in Functions — Python 3.11.15 documentation

    The isinstance() built-in function is recommended for testing the type of an object, because it takes subclasses into account. With …

  5. What Does isinstance() Do in Python? – Real Python

    Jul 21, 2025 · Learn what isinstance () does in Python and how to use this built-in function to check an object's type. Discover its …

  6. Python isinstance () - Programiz

    In this tutorial, we will learn about the Python isinstance () function with the help of examples.

  7. Python isinstance () 函数 | 菜鸟教程

    isinstance () 函数来判断一个对象是否是一个已知的类型,类似 type ()。 isinstance () 与 type () 区别: type () 不会认为子类是一种父 …

  8. How to Use isinstance () and issubclass () Functions

    Apr 30, 2026 · The isinstance () function is used to check if an object is an instance of a specific class or a tuple of classes. It returns …

  9. What are the differences between type() and isinstance()?

    To check if something is int or str use isinstance (something, (int, str)).

  10. Python isinstance Function - Complete Guide - ZetCode

    Apr 11, 2025 · This comprehensive guide explores Python's isinstance function, which checks if an object is an instance of a class or …