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Show a real implementation for typing.overload #159611

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9 changes: 7 additions & 2 deletions Doc/library/typing.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -3320,8 +3320,13 @@ Functions and decorators
@overload
def process(response: bytes) -> str:
...
def process(response):
... # actual implementation goes here
def process(response: int | bytes | None) -> tuple[int, str] | str | None:
# The implementation is not decorated with @overload
if response is None:
return None
if isinstance(response, int):
return response, str(response)
return response.decode()
Comment on lines +3323 to +3329

@picnixz picnixz Oct 23, 2026

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I appreciate the improvement but the 'int' part is IMO a bit confusing. Would you be willing to create a better example of overloaded functions?


See :pep:`484` for more details and comparison with other typing semantics.

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