Delete Contact
Part of the Logic & Flow section of Coddy's Python journey — lesson 21 of 78.
Challenge
EasyThe next step is to create the delete_contact function. This function will allow users to remove a specific contact from the Contact Book.
Your Task:
- Create a function named
delete_contactthat takes one argument:contact_book(a dictionary). - Get input for the contact's name that the user wants to delete.
- Check if the name exists in the
contact_book:- If it exists, remove the contact from the dictionary.
- Print:
"Contact deleted successfully!".
- If the contact does not exist, print:
"Contact not found!".
Try it yourself
def display_menu():
print("Contact Book Menu:")
print("1. Add Contact")
print("2. View Contact")
print("3. Edit Contact")
print("4. Delete Contact")
print("5. List All Contacts")
print("6. Exit")
def add_contact(contact_book):
name = input()
if name in contact_book:
print("Contact already exists!")
return
phone = input()
email = input()
address = input()
contact_book[name] = {"phone": phone, "email": email, "address": address}
print("Contact added successfully!")
def view_contact(contact_book):
name = input()
if name in contact_book:
contact = contact_book[name]
print(f"Name: {name}")
print(f"Phone: {contact['phone']}")
print(f"Email: {contact['email']}")
print(f"Address: {contact['address']}")
else:
print("Contact not found!")
def edit_contact(contact_book):
name = input()
if name in contact_book:
phone = input()
email = input()
address = input()
if phone == '':
phone = contact_book[name]['phone']
if email == '':
email = contact_book[name]['email']
if address == '':
address = contact_book[name]['address']
contact_book[name] = {"phone": phone, "email": email, "address": address}
print("Contact updated successfully!")
else:
print("Contact not found!")All lessons in Logic & Flow
1Variables Exploration
ConstantsMultiple Variable AssignmentsSwapping VariablesPlaceholder VariablesRound NumbersList Casting4Contact Book Application
Display MenuAdd Contact7Sets Part 2
Mathematical Operations Part 1Mathematical Operations Part 2Recap - Treasure HuntSubsets and SupersetsIterating Over SetsRecap - Tournament Tracker2Dictionaries Part 1
What is a Dictionary?Creating a DictionaryAccessing ValuesModifying DictionariesRecap - Recipe Manager5Advanced Decision Making
Ternary OperatorMembership ChecksIdentity ChecksIndentation ErrorsRecap - Vacation Filter8Student Records Manager
Project OverviewAdd Student11Advanced Functions
Returning Multiple ValuesLambda Functions Part 1Lambda Functions Part 2Recap Challenge - Lambda SortRecursive Functions Part 1Recursive Functions Part 2Recap - Sum Nested List14Higher-Order Functions
The Map FunctionThe Filter FunctionRecap - Email ValidatorRecap - Number Processor3Dictionaries Part 2
Dictionary MethodsNested DictionariesChecking for KeysLooping Through DictionariesRecap - Frequency Counter9Advanced Data Aggregation
Using SumFinding Minimum and MaximumSorting Data EfficientlyRecap - Dictionary Sorter