decoders.py 文件源码

def finalize(self):
        """Finalize this object.  This should be called when no more data
        should be written to the stream.  This function will not raise any
        exceptions, but it may write more data to the underlying object if
        there is data remaining in the cache.

        If the underlying object has a `finalize()` method, this function will
        call it.
        """
        # If we have a cache, write and then remove it.
        if len(self.cache) > 0:
            self.underlying.write(binascii.a2b_qp(self.cache))
            self.cache = b''

        # Finalize our underlying stream.
        if hasattr(self.underlying, 'finalize'):
            self.underlying.finalize()