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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 _exec_cmd(command):
 """Call a CMD command and return the output and returncode"""

    proc = sp.Popen(command,
                    stdout=sp.PIPE,
                    shell=True)
    if six.PY2:
        res = proc.communicate()[0]
    else:
        res = proc.communicate(timeout=5)[0]
    return res, proc.returncode