_validate_axis_limits

Signature

_validate_axis_limits(
    limits: ArrayLike,
    *,
    name: str,
    min_label: str,
    max_label: str,
) -> tuple[float, float]

What problem it solves

Converts and validates a pair of axis or range limits while keeping error messages specific to the parameter that requested them.

Input contract

• limits must be a sequence of exactly two elements.

• Strings and bytes are rejected explicitly.

• Both values must be convertible to float and finite.

Where it is used

• in histogram for xlim, ylim, and hist_range

• in lin_fit for xlim and ylim

Failure modes

• ValueError if limits is not a valid sequence

• ValueError if it does not contain exactly two elements

• ValueError if it contains non-finite values

Why it stays private

It is a support validator for the plotting layer. Its usefulness is internal, but documenting it makes the common plotting rules easier to read.