python - 清理具有多个重复项的文件

Question

我最近不得不在紧急情况下复制我网站上的数据库。

我使用我的管理代码在 Python 中创建的一些函数来抓取它。 数据库的格式如下:

Name: 
Phone Number: 
Has played the game: 

所有内容都已复制到 .txt 文件中，但有时，我会在文件中发现一些错误，例如:

Name: Name: Name: Bob

我如何使用 shell 命令或 Python 清理这个困惑但保持相同的顺序(我希望它仍然是姓名、电话号码等)？

Answer 1

假设你在 db.txt 中有这个

Phone Number: 
Phone Number: Phone Number: Phone Number: 0118521358 Name: Name: Name: Name: Bob
Has played the game:
Name: Name: Name: Name: Bob

你可以试试这样的小脚本

import re
#create a new file called new_file
new_file=open("new_file",'w')
#open the database file with the discrepancies
file_with_error=open('db.txt','r')
#make a list of all your columns in the db
db_header=['Name:','Phone Number:']
#iterate through each line in your database file and  find matches to replace
for line in file_with_error:
    for col_name in db_header:
        line=re.sub("(%s[ ]*)+" %(col_name,),col_name,line)
    new_file.write(line) #write your new line your file
new_file.close()
exit(0)