似乎解决方案非常简单（它一直躲藏在我的眼前，因为它被隐藏了）：
__name__是 main 而不是 main ！
简而言之，以下代码
main()按预期使用了：
# with main()import webapp2class GetHandler(webapp2.RequestHandler): def get(self): self.response.headers['Content-Type'] = 'text/plain' self.response.write('in GET')class SetHandler(webapp2.RequestHandler): def get(self): self.response.headers['Content-Type'] = 'text/plain' self.response.write('in SET')def main(): global app app = webapp2.WSGIApplication([ ('/get', GetHandler), ('/set', SetHandler), ], debug=True)# Note that it's 'main' and not '__main__'if __name__ == 'main': main()
