Function _parse_requirement_marker

tools/gyp/pylib/packaging/_parser.py:139–156

requirement_marker = SEMICOLON marker WS?

(
    tokenizer: Tokenizer, *, span_start: int, after: str
)

def _parse_requirement_marker(
    tokenizer: Tokenizer, *, span_start: int, after: str
) -> MarkerList:
    """
    requirement_marker = SEMICOLON marker WS?
    """

    if not tokenizer.check("SEMICOLON"):
        tokenizer.raise_syntax_error(
            f"Expected end or semicolon (after {after})",
            span_start=span_start,
        )
    tokenizer.read()

    marker = _parse_marker(tokenizer)
    tokenizer.consume("WS")

    return marker


def _parse_extras(tokenizer: Tokenizer) -> List[str]: