Function _read_headers

Lib/http/client.py:217–235

Reads potential header lines into a list from a file pointer. Length of line is limited by _MAXLINE, and number of headers is limited by max_headers.

(fp, max_headers)

        return lst

def _read_headers(fp, max_headers):
    """Reads potential header lines into a list from a file pointer.

    Length of line is limited by _MAXLINE, and number of
    headers is limited by max_headers.
    """
    headers = []
    if max_headers is None:
        max_headers = _MAXHEADERS
    while True:
        line = fp.readline(_MAXLINE + 1)
        if len(line) > _MAXLINE:
            raise LineTooLong("header line")
        if line in (b'\r\n', b'\n', b''):
            break
        headers.append(line)
        if len(headers) > max_headers:
            raise HTTPException(f"got more than {max_headers} headers")
    return headers

def _parse_header_lines(header_lines, _class=HTTPMessage):
    """