Traceback (most recent call last):
  File "/Users/LoridonNicolas/bin/timetable", line 208, in <module>
    main()
  File "/Users/LoridonNicolas/bin/timetable", line 204, in main
    print_courses(timetable)
  File "/Users/LoridonNicolas/bin/timetable", line 59, in print_courses
    print(c["title"])
TypeError: string indices must be integers