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# Python2.x Python issubclass() Function [ Python Built-in Functions](#) * * * ## Description The **issubclass()** method is used to determine whether the argument `class` is a subclass of the type argument `classinfo`. ### Syntax Here is the syntax for the issubclass() method: issubclass(class, classinfo) ### Parameters * class -- A class. * classinfo -- A class. ### Return Value Returns `True` if `class` is a subclass of `classinfo`, otherwise returns `False`. * * * ## Example The following example demonstrates the use of the issubclass function: #!/usr/bin/python# -*- coding: UTF-8 -*-class A: pass class B(A): pass print(issubclass(B,A))# Returns True [ Python Built-in Functions](#)