contactbook.py

import tkinter as tk
from tkinter import messagebox, simpledialog

contacts = []

# Function to refresh contact list display
def refresh_contact_list():
    contact_listbox.delete(0, tk.END)
    for contact in contacts:
        contact_listbox.insert(tk.END, f"{contact['name']} - {contact['phone']}")

# Add new contact
def add_contact():
    name = name_entry.get()
    phone = phone_entry.get()
    email = email_entry.get()
    address = address_entry.get()

    if name and phone:
        contacts.append({'name': name, 'phone': phone, 'email': email, 'address': address})
        refresh_contact_list()
        clear_entries()
    else:
        messagebox.showwarning("Input Error", "Name and Phone are required!")

# Clear input fields
def clear_entries():
    name_entry.delete(0, tk.END)
    phone_entry.delete(0, tk.END)
    email_entry.delete(0, tk.END)
    address_entry.delete(0, tk.END)

# Display contact details
def show_contact(event):
    selection = contact_listbox.curselection()
    if selection:
        index = selection[0]
        contact = contacts[index]
        name_entry.delete(0, tk.END)
        phone_entry.delete(0, tk.END)
        email_entry.delete(0, tk.END)
        address_entry.delete(0, tk.END)

        name_entry.insert(0, contact['name'])
        phone_entry.insert(0, contact['phone'])
        email_entry.insert(0, contact['email'])
        address_entry.insert(0, contact['address'])

# Delete selected contact
def delete_contact():
    selection = contact_listbox.curselection()
    if selection:
        index = selection[0]
        contacts.pop(index)
        refresh_contact_list()
        clear_entries()
    else:
        messagebox.showinfo("Delete Error", "Please select a contact to delete.")

# Update selected contact
def update_contact():
    selection = contact_listbox.curselection()
    if selection:
        index = selection[0]
        name = name_entry.get()
        phone = phone_entry.get()
        email = email_entry.get()
        address = address_entry.get()

        if name and phone:
            contacts[index] = {'name': name, 'phone': phone, 'email': email, 'address': address}
            refresh_contact_list()
            clear_entries()
        else:
            messagebox.showwarning("Input Error", "Name and Phone are required!")

# Search contact by name or phone
def search_contact():
    keyword = simpledialog.askstring("Search", "Enter name or phone:")
    if keyword:
        for i, contact in enumerate(contacts):
            if keyword.lower() in contact['name'].lower() or keyword in contact['phone']:
                contact_listbox.selection_clear(0, tk.END)
                contact_listbox.selection_set(i)
                contact_listbox.activate(i)
                show_contact(None)
                return
        messagebox.showinfo("Not Found", "No matching contact found.")

# GUI Setup
root = tk.Tk()
root.title("Contact Book")
root.geometry("600x400")
root.resizable(False, False)

# Labels and entries
tk.Label(root, text="Name").grid(row=0, column=0, padx=10, pady=5)
name_entry = tk.Entry(root)
name_entry.grid(row=0, column=1, padx=10, pady=5)

tk.Label(root, text="Phone").grid(row=1, column=0, padx=10, pady=5)
phone_entry = tk.Entry(root)
phone_entry.grid(row=1, column=1, padx=10, pady=5)

tk.Label(root, text="Email").grid(row=2, column=0, padx=10, pady=5)
email_entry = tk.Entry(root)
email_entry.grid(row=2, column=1, padx=10, pady=5)

tk.Label(root, text="Address").grid(row=3, column=0, padx=10, pady=5)
address_entry = tk.Entry(root)
address_entry.grid(row=3, column=1, padx=10, pady=5)

# Buttons
tk.Button(root, text="Add", command=add_contact, bg="#4CAF50", fg="white", width=10).grid(row=4, column=0, pady=10)
tk.Button(root, text="Update", command=update_contact, bg="#2196F3", fg="white", width=10).grid(row=4, column=1, pady=10)
tk.Button(root, text="Delete", command=delete_contact, bg="#f44336", fg="white", width=10).grid(row=5, column=0, pady=5)
tk.Button(root, text="Search", command=search_contact, bg="#9C27B0", fg="white", width=10).grid(row=5, column=1, pady=5)

# Contact list display
contact_listbox = tk.Listbox(root, width=50)
contact_listbox.grid(row=0, column=2, rowspan=6, padx=20, pady=10)
contact_listbox.bind('<<ListboxSelect>>', show_contact)

# Start main loop
root.mainloop()