如何比较python中两个文件中的行相同或不同 [英] how to compare lines in two files are same or different in python

问题描述

我有两个文件，其中包含以下几行:

I have two files which contains following lines:

file1:
6.959999999:    LOG_MOD_L0_RECEIVE_TXBRP_CONTROL(0, 
 0x0059005f, 
 0x0049006d, 
 0x00b9008b, 
 0x001300b9)
7.959999999:    LOG_MOD_L0_RECEIVE_TXBRP_Measure(1, 
 0x0059005m, 
 0x0049006d, 
 0x04b9008b, 
 0x001300b9)

file2:
6.959999999:    01_LOG_MOD_L0_RECEIVE_TXBRP_CONTROL(0, 
 0x0059005f, 
 0x0049006d, 
 0x00b9008b, 
 0x001300b9)
7.959999999:    LOG_MOD_L0_RECEIVE_TXBRP_Measure(1, 
 0x0059005m, 
 0x0049006d, 
 0x04b9008b, 
 0x001300b9)

在这里，如果我将文件 1 的输入字符串指定为LOG_MOD_L0_RECEIVE_TXBRP_CONTROL"和文件 2 的01_LOG_MOD_L0_RECEIVE_TXBRP_CONTROL".我想检查里面的数据是相同的还是不同的.我的意思是我必须检查

In this if i give input string for file1 as "LOG_MOD_L0_RECEIVE_TXBRP_CONTROL" and "01_LOG_MOD_L0_RECEIVE_TXBRP_CONTROL" for file 2.I want to check the data present inside is same or different.I mean i have to check

(0, 
 0x0059005f, 
 0x0049006d, 
 0x00b9008b, 
 0x001300b9)

这个数据和

(0, 
 0x0059005f, 
 0x0049006d, 
 0x00b9008b, 
 0x001300b9)

此数据是否相同.

我的代码是:

file1=open("C:\\Python27\\output1.txt","r")
file2=open("C:\\Python27\\output2.txt","r")
lines1=file1.readlines()
lines2=file2.readlines()

output1_string=raw_input("Enter the String of file1:")
output2_string=raw_input("Enter the String of file2:")
for line1 in lines1:
    for line2 in lines2:
      if line1==line2:
         print "both are same"
      else:
         print "Different"

推荐答案

您首先需要解决定位正确匹配部分的问题.以下生成器函数将生成您要查找的部分信息:

You'll first need to solve the problem of locating the right, matching section. The following generator function will produce the section information you are looking for:

def find_sections(filename, text):
    with open(filename) as fin:
        section = None
        for line in fin:
            if text in line:
                section = line.rpartition('(')[-2:]
                try:
                    while ')' not in line:
                        line = next(fin)
                        section.append(line)
                except StopIteration:
                    pass  # ran out of file to read
                yield ''.join(section)
            else:
                previous = line

要测试两个文件中是否存在相同的数据，请先读取一个并收集一组中的所有数据:

To test if the same data exists in both files, read one first and collect all data in a set:

output1_string=raw_input("Enter the String of file1:")
sections1 = set(find_sections("C:\\Python27\\output1.txt", output1_string))

现在您可以通过设置交集在另一个文件中找到匹配的条目:

Now you can find matching entries in the other file by doing a set intersection:

output2_string=raw_input("Enter the String of file2:")
sections2 = find_sections("C:\\Python27\\output2.txt", output1_string)
for match in sections1.intersection(sections2):
    print 'Found a match:'
    print match

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