NameError：名称“”没有定义

Question

所以我合并两个文件，并输出第三文件

我得到的错误

Traceback (most recent call last): 
File "summarize.py", line 124, in <module> 
train_data = set(document3) 
NameError: name 'document3' is not defined 

这是我做了什么：

代码：

 filenames = ["/home/mustafa/data/combinedfile.txt", "/home/mustafa/data/sentences.txt"] 
    with open("document3", "wb") as outfile: 
     for fname in filenames: 
      with open(fname) as infile: 
        outfile.write(infile.read()) 
    train_data = set(document3) 

我在做什么错？

Answer 1

看起来您正在尝试写入文件 'document3'并且您正试图从该文件中读取（根据您的评论）。如果是这种情况，您应该先阅读该文件，然后再处理数据。所以代码将是

filenames = ["/home/mustafa/data/combinedfile.txt", "/home/mustafa/data/sentences.txt"] 
with open("document3", "wb") as outfile: # here document3 is file name 
    for fname in filenames: 
     with open(fname) as infile: 
       outfile.write(infile.read()) 
train_data = set(open("document3").read().replace("\n","")) #this will read all data from document3 and stores as a set.