Exemplos de NoDataException em Python

Exemplo n.º 1

Arquivo: codecs.py Projeto: mechaMan0/RFID_TAG_APP

def read_or_raise(reader, n=-1):
    """
    Read a given byte number from Stream. NoDataException is raised if read gives no data
    :param reader: reader adapter
    :param n: number of bytes to read
    :return: bytes read
    """
    data = yield from reader.read(n)
    if not data:
        raise NoDataException("No more data")
    return data

Exemplo n.º 2

async def read_or_raise(reader, n=-1):
    """
    Read a given byte number from Stream. NoDataException is raised if read gives no data
    :param reader: reader adapter
    :param n: number of bytes to read
    :return: bytes read
    """
    try:
        data = await reader.read(n)
    except (asyncio.IncompleteReadError, ConnectionResetError, BrokenPipeError):
        data = None
    if not data:
        raise NoDataException("No more data")
    return data