Method communicate

Lib/asyncio/subprocess.py:188–203

(self, input=None)

        return output

    async def communicate(self, input=None):
        if self.stdin is not None:
            stdin = self._feed_stdin(input)
        else:
            stdin = self._noop()
        if self.stdout is not None:
            stdout = self._read_stream(1)
        else:
            stdout = self._noop()
        if self.stderr is not None:
            stderr = self._read_stream(2)
        else:
            stderr = self._noop()
        stdin, stdout, stderr = await tasks.gather(stdin, stdout, stderr)
        await self.wait()
        return (stdout, stderr)


async def create_subprocess_shell(cmd, stdin=None, stdout=None, stderr=None,