Function is_valid_index

src/black/trans.py:2570–2576

Returns: True iff @idx is positive AND seq[@idx] does NOT raise an IndexError.

(idx: int)

    class="st">"""

    def is_valid_index(idx: int) -> bool:
        class="st">"""
        Returns:
            True iff @idx is positive AND seq[@idx] does NOT raise an
            IndexError.
        class="st">"""
        return 0 <= idx < len(seq)

    return is_valid_index