edit file using by taking user input in python?

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)

no issue in indentation code is working Traceback (most recent call last): File "./addressBookpy.py", line 72, in <module> editContact() File "./addressBookpy.py", line 54, in editContact s = re.sub(old_email, new_email, obj2) File "/usr/lib64/python2.6/re.py", line 151, in sub return _compile(pattern, 0).sub(repl, string, count) TypeError: expected string or buffer This error i am geting — deepak rawat
– deepak rawat, Commented Apr 19, 2018 at 7:25
The indentation issue is trying to read the code and answer your question. Show the error in your question, not in a comment. — cdarke
– cdarke, Commented Apr 19, 2018 at 7:26
Your error is because the third parameter of re.sub should be a string not a file object. — cdarke
– cdarke, Commented Apr 19, 2018 at 7:29
Note that opening a file with write access will truncate the file to zero bytes destroying existing data. — cdarke
– cdarke, Commented Apr 19, 2018 at 7:33

Kenstars · Accepted Answer · 2018-04-19 07:31:00Z

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.

answered Apr 19, 2018 at 7:31

Kenstars

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deepak rawat · Accepted Answer · 2018-04-19 09:35:43Z

1

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

answered Apr 19, 2018 at 9:35

deepak rawat

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