Code help for understand

[viral shah]

Hi

in every .py file I found this same code line on the below side

*def main():
    application = webapp.WSGIApplication([('/', MainHandler)],
                                         debug=True)
    run_wsgi_app(application)


if __name__ == '__main__':
    main()
*
can anyone explain me what's the all this thing suggest?
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