一次关于sklearn-crfsuite的安装之旅

为了在windows上跑CRF，我需要安装sklearn-crfsuite，最开始想到的是使用pycharm进行环境配置，装上了sklearn-crfsuite。跑起来，额，出错了：

正在训练评估CRF模型...
Traceback (most recent call last):
  File "C:/Users/cc/Documents/xxx/yyy/window_version/main.py", line 73, in <module>
    main()
  File "C:/Users/cc/Documents/xxx/yyy/window_version/main.py", line 31, in main
    (test_word_lists, test_tag_lists)
  File "C:\Users\cc\Documents\xxx\yyy\window_version\evaluate.py", line 43, in crf_train_eval
    crf_model.train(train_word_lists, train_tag_lists)
  File "C:\Users\cc\Documents\xxx\yyy\window_version\models\crf.py", line 23, in train
    self.model.fit(features, tag_lists)
  File "C:\Users\cc\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn_crfsuite\estimator.py", line 331, in fit
    trainer.train(self.modelfile.name, holdout=-1 if X_dev is None else 1)
  File "pycrfsuite\_pycrfsuite.pyx", line 359, in pycrfsuite._pycrfsuite.BaseTrainer.train
  File "stringsource", line 15, in string.from_py.__