Meaning
Defines a function named func that accepts a parameter a which can be either a string or an integer and returns None, indicating the function performs side effects.
Primary Function
Defines a function that accepts a union of str and int and performs side‑effects without returning a value.
Communicative Purpose
Declare a function capable of handling either string or integer inputs for side‑effectful processing.
Pattern
def <func>(<param>: Union[str, int]) -> None:
Core Structure
def <func>(<param>: Union[str, int]) -> None:
Função primária
Defines a function that accepts a union of str and int and performs side‑effects without returning a value.
Propósito comunicativo
Declare a function capable of handling either string or integer inputs for side‑effectful processing.
Situações de gatilho
When a function needs to accept either textual or numeric input and produce side effects such as logging, printing, or modifying external state.
Contextos
Used in Python code where flexible input types are needed, e.g., CLI argument parsers, data processing pipelines, API handlers.
Padrão
def <func>(<param>: Union[str, int]) -> None:
Estrutura central
def <func>(<param>: Union[str, int]) -> None:
Slots de substituição
func, param
Colocados típicos
- Union
- str
- int
- None
- def
- ->
- :
Substituições comuns
- str|int
- float
- bool
- List[int]
Erros comuns
Forgetting to import Union from typing (Python <3.10), forgetting to handle both str and int branches, accidentally returning a value despite the -> None annotation.
Similar / contraste
def func(a: str) -> None:, def func(a: int) -> None:, def func(a: Union[str, int]) -> int:
Interferências
Confusing Union with union types in other languages; neglecting to handle both possible types leading to runtime errors.
Família do chunk
- function definitions
- union types
- type annotations
Nuance
The signature indicates the function accepts either a string or an integer but does not specify what it does with them; actual behavior depends on the function body.
Efeito pragmático
Signals to readers that the function is designed to accept flexible input types while performing side effects and returning no value.
Dica de memória
Function that takes a string or integer and does something with it.
Nota
Requires importing Union from typing for Python <3.10; in Python 3.10+ the union can be written as str | int.
Upgrade path
def func(a: Union[str, int]) -> ReturnType:
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