old_contents: from include import include
  class Handler:
      pass
  include(Handler, "./handler/")
  urls = [
      ('/', Handler.Index),
      ('/api/contest/', Handler.api.Contest),
      ('/api/users/', Handler.api.Users),
      ('/api/users/me/', Handler.api.UsersMe),
      ('/api/users/csv/', Handler.api.UsersCSV),
      ('/api/users/signin/', Handler.api.UserSignIn),
      ('/api/problems/', Handler.api.Problems),
      ('/api/problems/(\d+)/', Handler.api.Problem),
      ('/api/problems/(\d+)/executes/', Handler.api.ProblemExecutes),
      ('/api/clarifications/', Handler.api.Clarifications),
      ('/api/clarifications/(\d+)/', Handler.api.Clarification),
      ('/api/executes/', Handler.api.Executes),
      ('/api/executes/(\d+)/', Handler.api.Execute),
      ('/api/system/(\w*)/', Handler.api.System),
  ]
  
new_contents: from include import include
  class Handler:
      pass
  include(Handler, "./handler/")
  urls = [
      ('/', Handler.Index),
      ('/api/contest/', Handler.api.Contest),
      ('/api/users/', Handler.api.Users),
      ('/api/users/me/', Handler.api.UsersMe),
      ('/api/users/csv/', Handler.api.UsersCSV),
      ('/api/users/signin/', Handler.api.UserSignIn),
      ('/api/problems/', Handler.api.Problems),
      ('/api/problems/(\d+)/', Handler.api.Problem),
      ('/api/problems/(\d+)/executes/', Handler.api.ProblemExecutes),
      #('/api/problems/(\d+)/rejudge/', Handler.api.ProblemRejudge),
      #('/api/problems/(\d+)/testdata/', Handler.api.ProblemTestdata),
      #('/api/submissions/', Handler.api.Submissions),
      #('/api/submissions/(\d+)/', Handler.api.Submission),
      #('/api/submissions/(\d+)/rejudge/', Handler.api.SubmissionRejudge),
      ('/api/clarifications/', Handler.api.Clarifications),
      ('/api/clarifications/(\d+)/', Handler.api.Clarification),
      ('/api/executes/', Handler.api.Executes),
      ('/api/executes/(\d+)/', Handler.api.Execute),
      ('/api/system/(\w*)/', Handler.api.System),
  ]
  
subject: update all urls