Function warn

traitlets/utils/warnings.py:9–14

Like warnings.warn(), but category and stacklevel are required. You pretty much never want the default stacklevel of 1, so this helps encourage setting it explicitly.

(msg: str, category: t.Any, *, stacklevel: int, source: t.Any = None)

def warn(msg: str, category: t.Any, *, stacklevel: int, source: t.Any = None) -> None:
    """Like warnings.warn(), but category and stacklevel are required.

    You pretty much never want the default stacklevel of 1, so this helps
    encourage setting it explicitly."""
    warnings.warn(msg, category=category, stacklevel=stacklevel, source=source)


def deprecated_method(method: t.Any, cls: t.Any, method_name: str, msg: str) -> None: