在文本文件中读取时，Python可以从字符串中删除双引号吗？ [英] Can Python remove double quotes from a string, when reading in text file?

问题描述

我有一些这样的文本文件，有几行5000行：

  5.6 4.5 6.86.5 
 5.4 8.3 1.29.3（新行）
  

我想要做的是，使用Python（如果可能），将四列分配给双变量。但是主要的问题是最后一个术语，我发现没有办法删除双引号的数字，是否可能在linux？

这是我试过： / p>

 ＃！/ usr / bin / python 
 
 import os，sys，re，string，array 
 
 name = sys.argv [1] 
 infile = open（name，r）
 
 cont = 0 
 while 1：
 line = infile.readline（）
如果不是行：break 
l = re.split（\s +，string.strip（line））。replace（'\''，'' ）
 cont = cont +1 
a = l [0] 
b = l [1] 
c = l [2] 
d = l [3] 
      尽管文档对 skipinitialspace  
不是很具体。
 >>> import csv 
 
>>> with open（name，'rb'）as f：
 ... for row in csv.reader（f，delimiter =''，skipinitialspace = True）：
 ... print'|'.join（row）
 
 5.6 | 4.5 | 6.8 | 6.5 
 5.4 | 8.3 | 1.2 | 9.3¥b $ b  
 
I have some text file like this, with several 5000 lines:
5.6  4.5  6.8  "6.5" (new line)
5.4  8.3  1.2  "9.3" (new line)
so the last term is a number between double quotes.

What I want to do is, using Python (if possible), to assign the four columns to double variables. But the main problem is the last term, I found no way of removing the double quotes to the number, is it possible in linux?

This is what I tried:
#!/usr/bin/python

import os,sys,re,string,array

name=sys.argv[1]
infile = open(name,"r")

cont = 0
while 1:
         line = infile.readline()
         if not line: break
         l = re.split("\s+",string.strip(line)).replace('\"','')
     cont = cont +1
     a = l[0]
     b = l[1]
     c = l[2]
     d = l[3]

解决方案
The csv module (standard library) does it automatically, although the docs isn't very specific about skipinitialspace
>>> import csv

>>> with open(name, 'rb') as f:
...     for row in csv.reader(f, delimiter=' ', skipinitialspace=True):
...             print '|'.join(row)

5.6|4.5|6.8|6.5
5.4|8.3|1.2|9.3


                        
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