'Retrieve information.'

def communicate(self):

    self._communicate_first = True
    self._process.waitForFinished()
    enco = self._get_encoding()
    if (self._partial_stdout is None):
        raw_stdout = self._process.readAllStandardOutput()
        stdout = handle_qbytearray(raw_stdout, enco)
    else:
        stdout = self._partial_stdout
    raw_stderr = self._process.readAllStandardError()
    stderr = handle_qbytearray(raw_stderr, enco)
    result = [stdout.encode(enco), stderr.encode(enco)]
    if PY2:
        stderr = stderr.decode()
    result[(-1)] = ''
    self._result = result
    if (not self._fired):
        self.sig_finished.emit(self, result[0], result[(-1)])
    self._fired = True
    return result
