__anext__ — Easy Examples

Returns the next value from an async iterator

EasyIntermediateAdvancedExpert

Implementing __anext__

Basic implementation of __anext__ in a class.

python
class Example:
    def __anext__(self):
        return "Example __anext__"

obj = Example()
print(obj)

__anext__ returns the next value from an async iterator. Implementing it lets you customize how Python interacts with your objects.

__anext__ in action

Seeing __anext__ called by Python's built-in operations.

python
# How Python calls __anext__ automatically
class Demo:
    def __init__(self, value):
        self.value = value

    def __anext__(self):
        print(f"__anext__ was called!")
        return self

d = Demo(42)
# This triggers __anext__:
print(d)

Python automatically calls __anext__ when you use the corresponding operator or function on your object.

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