def from_reply(cls, reply: QtNetwork.QNetworkReply) -> 'Response':
"""Slowly populates a new Response object with data from the request."""
r = cls()
# Signal mapping
reply.metaDataChanged.connect(functools.partial(r._insert_headers, reply.rawHeaderPairs()))
reply.redirected.connect(r._insert_url)
reply.error.connect(r._update_code)
reply.error.connect(functools.partial(r._update_error_string, reply.errorString()))
# Wait until the request is finished before continuing
signals.wait_for_signal(reply.finished)
# Strip the remaining data from the reply, then mark it for deletion
r._from_reply(reply)
reply.close()
reply.deleteLater()
# Return the object
return r
