通过在python中获取用户输入来编辑文件？

Question

i want to edit email id and phone number by taking user input but i am unable to that through this what i am doing wrong in this code help.

file.txt

Jon Snow 996452544 Jon@gmail
Robb 885546694 Robb@gmail
Robert 896756885 Robert@gmail

code

 def editContact():
    obj2 = open("address.txt","r")  
    output = []

    old_email=raw_input("Enter old email address : ")               
    new_email=raw_input("Enter new email address : ")
    s = re.sub(old_email, new_email, obj2)     

    obj1 = open("address.txt","w")
    obj1.writelines(s)

Answer 1

I think the issue you are having is :

s = re.sub(old_email, new_email, obj2)

obj2 here is a file obj, read the file using obj2.read()

then you will be able to replace.

Answer 2

abc=obj2.read()
s = re.sub(old_email, new_email, abc)