Python :: IOError：[Errno 2]没有这样的文件或目录：'models/dictionary.dict'

Question

我正在使用gensim包进行python中的主题建模。

我正在尝试使用gensim来训练主题模型。下面是train.py模块：

class Corpus(object): 
    def __init__(self, cursor, reviews_dictionary, corpus_path): 
     self.cursor = cursor 
     self.reviews_dictionary = reviews_dictionary 
     self.corpus_path = corpus_path 

    def __iter__(self): 
     self.cursor.rewind() 
     for review in self.cursor: 
      yield self.reviews_dictionary.doc2bow(review["words"]) 

    def serialize(self): 
     BleiCorpus.serialize(self.corpus_path, self, id2word=self.reviews_dictionary) 

     return self 


class Dictionary(object): 
    def __init__(self, cursor, dictionary_path): 
     self.cursor = cursor 
     self.dictionary_path = dictionary_path 

    def build(self): 
     self.cursor.rewind() 
     dictionary = corpora.Dictionary(review["words"] for review in self.cursor) 
     dictionary.filter_extremes(keep_n=10000) 
     dictionary.compactify() 
     corpora.Dictionary.save(dictionary, self.dictionary_path) 

     return dictionary 


class Train: 
    def __init__(self): 
     pass 

    @staticmethod 
    def run(lda_model_path, corpus_path, num_topics, id2word): 
     corpus = corpora.BleiCorpus(corpus_path) 
     lda = gensim.models.LdaModel(corpus, num_topics=num_topics, id2word=id2word) 
     lda.save(lda_model_path) 

     return lda 

我收到以下错误，当我运行此模块：

> Traceback (most recent call last): 


    File "train.py", line 74, in <module> 
    main() 

    File "train.py", line 68, in main 
    dictionary = Dictionary(reviews_cursor, dictionary_path).build() 
    File "train.py", line 38, in build 
    corpora.Dictionary.save(dictionary, self.dictionary_path) 
    File "/usr/local/lib/python2.7/dist-packages/gensim/utils.py", line 288, in save 
    pickle(self, fname) 
    File "/usr/local/lib/python2.7/dist-packages/gensim/utils.py", line 666, in pickle 
    with smart_open(fname, 'wb') as fout: # 'b' for binary, needed on Windows 
    File "/usr/local/lib/python2.7/dist-packages/gensim/utils.py", line 661, in smart_open 
    return open(fname, mode) 
    IOError: [Errno 2] No such file or directory: 'models/dictionary.dict' 

任何人都可以请帮我找出这个问题？

Answer 1

在保存操作过程中出现“没有这样的文件或目录”时，通常意味着您指定的目录路径作为输出文件的容器不存在。在这种情况下，你已经明确地给出了它是相对路径self.dictionary_path = "models/dictionary.dict"。保存到此路径的错误大概意味着文件无法保存在“模型”中，因为目录“models”相对于当前工作目录不存在。

要找出当前的工作目录，您可以使用os.getcwd。要测试目录是否存在，您可以使用os.path.isdir。要创建一个目录，您可以使用os.mkdir。