glue.py 文件源码

def dep_parse(self, sentence):
        """
        Return a dependency graph for the sentence.

        :param sentence: the sentence to be parsed
        :type sentence: list(str)
        :rtype: DependencyGraph
        """

        #Lazy-initialize the depparser
        if self.depparser is None:
            from nltk.parse import MaltParser
            self.depparser = MaltParser(tagger=self.get_pos_tagger())
        if not self.depparser._trained:
            self.train_depparser()
        return self.depparser.parse(sentence, verbose=self.verbose)