[Bug]KeyError: 'XSRF-TOKEN'

[Fireond]

运行learn ddl,learn submit等命令时报错：

Traceback (most recent call last):
  File "/Users/user/anaconda3/bin/learn", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/click/core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/click/core.py", line 1053, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/click/core.py", line 1659, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/click/core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/click/core.py", line 754, in invoke
    return __callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/thulearn2018/learn.py", line 61, in submit
    learn.set_semester()
  File "/Users/user/anaconda3/lib/python3.11/site-packages/thulearn2018/browser.py", line 66, in set_semester
    content = self.jh.loads(self.get(settings.semester_url))
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/anaconda3/lib/python3.11/site-packages/thulearn2018/browser.py", line 52, in get
    '_csrf': self.session.cookies.get_dict()['XSRF-TOKEN']
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
KeyError: 'XSRF-TOKEN'

与#4 中的报错相同