Python 3.9+Input & outputfunction

keyword.issoftkeyword()

variables

Checks whether a string is a soft keyword (match, case, _, type): it acts as a keyword only in a particular context.

Syntax

keyword.issoftkeyword(s)

A soft keyword stays an ordinary name outside its construct: match = 3 is legal, while inside match/case it is syntax. The list keyword.softkwlist grows between versions: type was added in 3.12 and lazy in 3.15, so the answer for the same word depends on the interpreter. For ordinary keywords the function returns False — iskeyword checks those.

Examples

import keyword
print(keyword.issoftkeyword('match'), keyword.issoftkeyword('if'))  # → True False
match = 3  # мягкое ключевое слово можно занять
print(match)  # → 3
print(keyword.softkwlist)  # → ? список зависит от версии Python

See also

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