Create a contact book
Tim Chase
python.list at tim.thechases.com
Tue Oct 26 14:27:04 EDT 2021
On 2021-10-25 22:40, anders Limpan wrote:
> i would like to create a contact book were you can keep track of
> your friends. With this contact book you will both be able to add
> friends and view which friends that you have added. anyone
> interested in helping me out with this one ?=) --
Python provides the shelve module for just this sort of thing:
import shelve
class Contact:
def __init__(self, name):
self.name = name
self.address = ""
self.phone = ""
with shelve.open("contacts") as db:
dave = Contact("Dave Smith")
dave.address = "123 Main St\nAnytown, NY 12345"
dave.phone = "800-555-1212"
db["dave"] = dave
ellen = Contact("Ellen Waite")
ellen.phone = "+1234567890"
db["ellen"] = ellen
Then at some future point you can use
with shelve.open("contacts") as db:
dave = db["dave"]
print(f"Dave lives at {dave.address}")
ellen = db["ellen"]
print(f"Ellen's phonenumber is {ellen.phonenumber}")
I'll leave to you the details of implementing an actual address-book
out of these parts. Be sure to read the docs for the shelve module
https://docs.python.org/3/library/shelve.html
including the various security warnings and caveats.
-tkc
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