I have a problem:
I need to create the address book in python that include name, phone number, email, address, etc...The information in the address book can able to delete or change.
I will give more information later!
Can you help me? I need to solve this problem quickly!
If your data has be in text files, do what SgtMe suggested.
Alternatively, look into sqlite3 python module. It would allow you to create a real database and run sql statements against it to add, modify, and delete records.
Maybe I used the wrong word "portability":$. Actually I wanted to say that if you want to create a project that is to be used by different coders following different languages, than you can always go for the json module. Just a piece of knowledge I had and I wanted to share. I didn't know about the speed problem. :-O
And if anyone wants to see the languages supported by json: json.org