蟒蛇代替单词按条件

Question

在标准输入，我提供以下文件：

#123  595739778  "neutral"  Won the match #getin 
    #164  595730008  "neutral"  Good girl 

数据2号看起来像这样：

labels 1 0 -1 
    -1 0.272653 0.139626 0.587721 
    1 0.0977782 0.0748234 0.827398 

我想看看它在-1数据＃2文件，然后用负，1则正，替换0，则中性

以下是我的问题：

1. 启动数据＃2文件在第二行
   
2. 我正面临着替换的麻烦。我想像下面一样替换它，但是它显示了一个错误，它期望另外1个参数，但是我已经有2个参数了。

3. 如果我这样做，类似下面（注意print语句）：

   if binary == "-1": 
       senti = str.replace(senti.strip('"'),"negative") 
   elif binary == "1": 
       senti = str.replace(senti.strip('"'),"positive") 
   elif binary == "0": 
       senti = str.replace(senti.strip('"'),"neutral") 
   print id, "\t", num, "\t", senti, "\t", sent 
   

   ，但如果我这样做（注意打印），那么它不会在 '如果条件' 走出去：

   if binary == "-1": 
       senti = str.replace(senti.strip('"'),"negative") 
   elif binary == "1": 
       senti = str.replace(senti.strip('"'),"positive") 
   elif binary == "0": 
       senti = str.replace(senti.strip('"'),"neutral") 
   

   打印ID， “\ t” 的，NUM， “\ t” 的，senti， “\ t” 的，送

如何打印即可。 输出，我得到： ＃123 595739778 “中性” 赢得了比赛#getin ＃164 595730008 “中立” 好女孩

output expected (replace just replaces the negative, positive & neutral as per data# file: 

    #123  595739778  negative  Won the match #getin 
    #164  595730008  positive  Good girl 

错误：

Traceback (most recent call last): 
    File "./combine.py", line 17, in <module> 
    senti = str.replace(senti.strip('"'),"negative") 
TypeError: replace() takes at least 2 arguments (1 given) 

这里是我的代码：

for line in sys.stdin: 
    (id,num,senti,sent) = re.split("\t+",line.strip()) 
    tweet = re.split("\s+", sent.strip().lower()) 
    f = open("data#2.txt","r") 
    for line1 in f: 
     (binary,rest,rest1,test2) = re.split("\s", line1.strip()) 
     if binary == "-1": 
      senti = str.replace(senti.strip('"'),"negative") 
     elif binary == "1": 
      senti = str.replace(senti.strip('"'),"positive") 
     elif binary == "0": 
      senti = str.replace(senti.strip('"'),"neutral") 
     print id, "\t", num, "\t", senti, "\t", sent 

Answer 1

你实际上错过了一个替换的论点;因为它是字符串本身的方法，你可以做两种：

In [72]: str.replace('one','o','1') 
Out[72]: '1ne' 

或

In [73]: 'one'.replace('o','1') 
Out[73]: '1ne' 

在代码中，你可能会想，例如

if binary == "-1": 
     senti = senti.strip('"').replace("-1","negative") 

要跳过数据＃2文件的第一行，一个选择是

f = open("data#2.txt","r") 
for line1 in f.readlines()[1:]: # skip the first line 
    #rest of your code here 

编辑：聊天对话后，你想要什么，我觉得更像是以下几点：

f = open("data#2.txt","r") 
datalines = f.readlines()[1:] 

count = 0 

for line in sys.stdin: 
    if count == len(datalines): break # kill the loop if we've reached the end 
    (tweetid,num,senti,tweets) = re.split("\t+",line.strip()) 
    tweet = re.split("\s+", tweets.strip().lower()) 
    # grab the right index from our list 
    (binary,rest,rest1,test2) = re.split("\s", datalines[count].strip()) 
    if binary == "-1": 
     sentiment = "negative" 
    elif binary == "1": 
     sentiment = "positive" 
    elif binary == "0": 
     sentiment = "neutral" 
    print tweetid, "\t", num, "\t", sentiment, "\t", tweets 
    count += 1 # add to our counter