Module « typing » Python 3.11.3

Fonction LiteralString - module typing

Signature de la fonction LiteralString

def LiteralString(*args, **kwds) 

Description

help(typing.LiteralString)

Represents an arbitrary literal string.

    Example::

        from typing import LiteralString

        def run_query(sql: LiteralString) -> ...
            ...

        def caller(arbitrary_string: str, literal_string: LiteralString) -> None:
            run_query("SELECT * FROM students")  # ok
            run_query(literal_string)  # ok
            run_query("SELECT * FROM " + literal_string)  # ok
            run_query(arbitrary_string)  # type checker error
            run_query(  # type checker error
                f"SELECT * FROM students WHERE name = {arbitrary_string}"
            )

    Only string literals and other LiteralStrings are compatible
    with LiteralString. This provides a tool to help prevent
    security issues such as SQL injection.