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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 list_clients():
 """ List all the servers that are running. """

    p = '%s/pymux.sock.%s.*' % (tempfile.gettempdir(), getpass.getuser())
    for path in glob.glob(p):
        try:
            yield PosixClient(path)
        except socket.error:
            pass