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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def call_output(cmd, stdin=None, encoding_errors="replace", **kwargs):
 """Run command and read output."""

    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, **kwargs)
    stdout, stderr, retcode = [], [], None
    while retcode is None:
        if stdin is not None:
            logger.log_prefix("<0 ", stdin.rstrip())
        raw_out, raw_err = p.communicate(stdin)
        stdin = None

        out = raw_out.decode(get_encoding(sys.stdout), encoding_errors) if raw_out else ""
        if out:
            logger.log_prefix("1> ", out.rstrip())
        stdout.append(out)

        err = raw_err.decode(get_encoding(sys.stderr), encoding_errors) if raw_err else ""
        if err:
            logger.log_prefix("2> ", err.rstrip())
        stderr.append(err)

        retcode = p.poll()
    return stdout, stderr, retcode