复现：
$ learn ddl
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Scripts\learn.exe\__main__.py", line 7, in <module>
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\click\core.py", line 1157, in __call__
return self.main(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\click\core.py", line 1078, in main
rv = self.invoke(ctx)
^^^^^^^^^^^^^^^^
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\click\core.py", line 1688, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\click\core.py", line 1434, in invoke
return ctx.invoke(self.callback, **ctx.params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\click\core.py", line 783, in invoke
return __callback(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\thulearn2018\learn.py", line 90, in ddl
learn.set_semester(semester)
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\thulearn2018\browser.py", line 66, in set_semester
content = self.jh.loads(self.get(settings.semester_url))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ethkuil\AppData\Local\Programs\Python\Python312\Lib\site-packages\thulearn2018\browser.py", line 52, in get
'_csrf': self.session.cookies.get_dict()['XSRF-TOKEN']
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
KeyError: 'XSRF-TOKEN'
复现：