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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 main():
 """Main entry point for Glances. Select the mode (standalone, client or server) """

    # Catch the CTRL-C signal
    signal.signal(signal.SIGINT, __signal_handler)

    # Log Glances and psutil version
    logger.info('Start Glances {}'.format(__version__))
    logger.info('{} {} and psutil {} detected'.format(
        platform.python_implementation(),
        platform.python_version(),
        psutil_version))

    # Share global var
    global core

    # Create the Glances main instance
    core = GlancesMain()
    config = core.get_config()
    args = core.get_args()

    # Glances can be ran in standalone, client or server mode
    start(config=config, args=args)