Contact Management System Project in Python with SQLite | SQLite3 in Python | Python Tkinter | Complete Source code

Hello Friends I hope you all are doing well, Today in this  "Contact Management System Project in Python with SQLite" we will learn to develop an interesting project and the name of the project is Contact Management System. In this project we will use SQLite database to handle database. To get the complete knowledge and complete code of this project just go through this post . To explain this project i have divided the code into different and now  i am going to explain each part separately.

If you want to understand this through video then watch this video i have explained it step by step live

Import Libraries : i have imported all the needed library to create this project.

#import libraries
from tkinter import *
import tkinter.ttk as ttk
import tkinter.messagebox as tkMessageBox
import sqlite3

From the above code you can see that i have imported mainly two library tkinter and sqlite3 in which tkinter to create GUI interface and sqlite3 to handle database.

Create Database and Table: For this project i have create a database and a single table into it to handle this project. Following is the code to create Database and a Table.

#function to define database
def Database():
    global conn, cursor
    #creating contact database
    conn = sqlite3.connect("contact.db")
    cursor = conn.cursor()
    #creating REGISTRATION table
    cursor.execute(
        "CREATE TABLE IF NOT EXISTS REGISTRATION (RID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, FNAME TEXT, LNAME TEXT, GENDER TEXT, ADDRESS TEXT, CONTACT TEXT)")

Here I have created a database with name contact and a Table with name REGISTRATION.

GUI Interface: I have used tkinter library to create a complete and attractive user interface. Following is the code to create a GUI for Contact Management System.

#defining function for creating GUI Layout
def DisplayForm():
    #creating window
    display_screen = Tk()
    #setting width and height for window
    display_screen.geometry("900x400")
    #setting title for window
    display_screen.title("krazyprogrammers.com presents")
    global tree
    global SEARCH
    global fname,lname,gender,address,contact
    SEARCH = StringVar()
    fname = StringVar()
    lname = StringVar()
    gender = StringVar()
    address = StringVar()
    contact = StringVar()
    #creating frames for layout
    #topview frame for heading
    TopViewForm = Frame(display_screen, width=600, bd=1, relief=SOLID)
    TopViewForm.pack(side=TOP, fill=X)
    #first left frame for registration from
    LFrom = Frame(display_screen, width="350",bg="#15244C")
    LFrom.pack(side=LEFT, fill=Y)
    #seconf left frame for search form
    LeftViewForm = Frame(display_screen, width=500,bg="#0B4670")
    LeftViewForm.pack(side=LEFT, fill=Y)
    #mid frame for displaying lnames record
    MidViewForm = Frame(display_screen, width=600)
    MidViewForm.pack(side=RIGHT)
    #label for heading
    lbl_text = Label(TopViewForm, text="Contact Management System", font=('verdana', 18), width=600,bg="cyan")
    lbl_text.pack(fill=X)
    #creating registration form in first left frame
    Label(LFrom, text="First Name  ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom,font=("Arial",10,"bold"),textvariable=fname).pack(side=TOP, padx=10, fill=X)
    Label(LFrom, text="Last Name ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom, font=("Arial", 10, "bold"),textvariable=lname).pack(side=TOP, padx=10, fill=X)
    Label(LFrom, text="Gender ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    #Entry(LFrom, font=("Arial", 10, "bold"),textvariable=gender).pack(side=TOP, padx=10, fill=X)
    gender.set("Select Gender")
    content={'Male','Female'}
    OptionMenu(LFrom,gender,*content).pack(side=TOP, padx=10, fill=X)


    Label(LFrom, text="Address ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom, font=("Arial", 10, "bold"),textvariable=address).pack(side=TOP, padx=10, fill=X)
    Label(LFrom, text="Contact ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom, font=("Arial", 10, "bold"),textvariable=contact).pack(side=TOP, padx=10, fill=X)
    Button(LFrom,text="Submit",font=("Arial", 10, "bold"),command=register,bg="#15244C",fg="white").pack(side=TOP, padx=10,pady=5, fill=X)

    #creating search label and entry in second frame
    lbl_txtsearch = Label(LeftViewForm, text="Enter fname to Search", font=('verdana', 10),bg="#0B4670")
    lbl_txtsearch.pack()
    #creating search entry
    search = Entry(LeftViewForm, textvariable=SEARCH, font=('verdana', 15), width=10)
    search.pack(side=TOP, padx=10, fill=X)
    #creating search button
    btn_search = Button(LeftViewForm, text="Search", command=SearchRecord,bg="cyan")
    btn_search.pack(side=TOP, padx=10, pady=10, fill=X)
    #creating view button
    btn_view = Button(LeftViewForm, text="View All", command=DisplayData,bg="cyan")
    btn_view.pack(side=TOP, padx=10, pady=10, fill=X)
    #creating reset button
    btn_reset = Button(LeftViewForm, text="Reset", command=Reset,bg="cyan")
    btn_reset.pack(side=TOP, padx=10, pady=10, fill=X)
    #creating delete button
    btn_delete = Button(LeftViewForm, text="Delete", command=Delete,bg="cyan")
    btn_delete.pack(side=TOP, padx=10, pady=10, fill=X)
    #create update button
    btn_delete = Button(LeftViewForm, text="Update", command=Update,bg="cyan")
    btn_delete.pack(side=TOP, padx=10, pady=10, fill=X)
    #setting scrollbar
    scrollbarx = Scrollbar(MidViewForm, orient=HORIZONTAL)
    scrollbary = Scrollbar(MidViewForm, orient=VERTICAL)
    tree = ttk.Treeview(MidViewForm,columns=("Student Id", "Name", "Contact", "Email","Rollno","Branch"),
                        selectmode="extended", height=100, yscrollcommand=scrollbary.set, xscrollcommand=scrollbarx.set)
    scrollbary.config(command=tree.yview)
    scrollbary.pack(side=RIGHT, fill=Y)
    scrollbarx.config(command=tree.xview)
    scrollbarx.pack(side=BOTTOM, fill=X)
    #setting headings for the columns
    tree.heading('Student Id', text="Id", anchor=W)
    tree.heading('Name', text="FirstName", anchor=W)
    tree.heading('Contact', text="LastName", anchor=W)
    tree.heading('Email', text="Gender", anchor=W)
    tree.heading('Rollno', text="Address", anchor=W)
    tree.heading('Branch', text="Contact", anchor=W)
    #setting width of the columns
    tree.column('#0', stretch=NO, minwidth=0, width=0)
    tree.column('#1', stretch=NO, minwidth=0, width=100)
    tree.column('#2', stretch=NO, minwidth=0, width=150)
    tree.column('#3', stretch=NO, minwidth=0, width=80)
    tree.column('#4', stretch=NO, minwidth=0, width=120)
    tree.pack()
    DisplayData()

For your simplicity i i have explained each line of code with proper comment.

Insert data into Database: I have created a separate function for each operation of this project. To handle registration a function with name registration is created.

def register():
    Database()
    #getting form data
    fname1=fname.get()
    lname1=lname.get()
    gender1=gender.get()
    address1=address.get()
    contact1=contact.get()
    #applying empty validation
    if fname1=='' or lname1==''or gender1=='' or address1==''or contact1=='':
        tkMessageBox.showinfo("Warning","fill the empty field!!!")
    else:
        #execute query
        conn.execute('INSERT INTO REGISTRATION (FNAME,LNAME,GENDER,ADDRESS,CONTACT) \
              VALUES (?,?,?,?,?)',(fname1,lname1,gender1,address1,contact1));
        conn.commit()
        tkMessageBox.showinfo("Message","Stored successfully")
        #refresh table data
        DisplayData()
        conn.close()

Update Data: I have created a function Update to update data into database. Following is the code to update/change data into database.

#function to update data into database
def Update():
    Database()
    #getting form data
    fname1=fname.get()
    lname1=lname.get()
    gender1=gender.get()
    address1=address.get()
    contact1=contact.get()
    #applying empty validation
    if fname1=='' or lname1==''or gender1=='' or address1==''or contact1=='':
        tkMessageBox.showinfo("Warning","fill the empty field!!!")
    else:
        #getting selected data
        curItem = tree.focus()
        contents = (tree.item(curItem))
        selecteditem = contents['values']
        #update query
        conn.execute('UPDATE REGISTRATION SET FNAME=?,LNAME=?,GENDER=?,ADDRESS=?,CONTACT=? WHERE RID = ?',(fname1,lname1,gender1,address1,contact1, selecteditem[0]))
        conn.commit()
        tkMessageBox.showinfo("Message","Updated successfully")
        #reset form
        Reset()
        #refresh table data
        DisplayData()
        conn.close()

Delete Data: To delete the data from database i have defined a function with name Delete here is the following code for this function.

def Delete():
    #open database
    Database()
    if not tree.selection():
        tkMessageBox.showwarning("Warning","Select data to delete")
    else:
        result = tkMessageBox.askquestion('Confirm', 'Are you sure you want to delete this record?',
                                          icon="warning")
        if result == 'yes':
            curItem = tree.focus()
            contents = (tree.item(curItem))
            selecteditem = contents['values']
            tree.delete(curItem)
            cursor=conn.execute("DELETE FROM REGISTRATION WHERE RID = %d" % selecteditem[0])
            conn.commit()
            cursor.close()
            conn.close()

Reset Form data: To clear or reset the form data i have defined a function with name Reset here is the code for this function

def Reset():
    #clear current data from table
    tree.delete(*tree.get_children())
    #refresh table data
    DisplayData()
    #clear search text
    SEARCH.set("")
    fname.set("")
    lname.set("")
    gender.set("")
    address.set("")
    contact.set("")

Search Record: To search a particular record from database i have defined a function with name SearchRecord and here is the following code for this function.

#function to search data
def SearchRecord():
    #open database
    Database()
    #checking search text is empty or not
    if SEARCH.get() != "":
        #clearing current display data
        tree.delete(*tree.get_children())
        #select query with where clause
        cursor=conn.execute("SELECT * FROM REGISTRATION WHERE FNAME LIKE ?", ('%' + str(SEARCH.get()) + '%',))
        #fetch all matching records
        fetch = cursor.fetchall()
        #loop for displaying all records into GUI
        for data in fetch:
            tree.insert('', 'end', values=(data))
        cursor.close()
        conn.close()

Display All Record: To display all records i have defined a function with name DisplayData and here is the complete code for this function to display all data.

#defining function to access data from SQLite database
def DisplayData():
    #open database
    Database()
    #clear current data
    tree.delete(*tree.get_children())
    #select query
    cursor=conn.execute("SELECT * FROM REGISTRATION")
    #fetch all data from database
    fetch = cursor.fetchall()
    #loop for displaying all data in GUI
    for data in fetch:
        tree.insert('', 'end', values=(data))
        tree.bind("<Double-1>",OnDoubleClick)
    cursor.close()
    conn.close()

Complete Code : Here is the complete code for this project just open any python file and type this code or you can copy this code for your personal use only.

#import libraries
from tkinter import *
import tkinter.ttk as ttk
import tkinter.messagebox as tkMessageBox
import sqlite3

#function to define database
def Database():
    global conn, cursor
    #creating contact database
    conn = sqlite3.connect("contact.db")
    cursor = conn.cursor()
    #creating REGISTRATION table
    cursor.execute(
        "CREATE TABLE IF NOT EXISTS REGISTRATION (RID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, FNAME TEXT, LNAME TEXT, GENDER TEXT, ADDRESS TEXT, CONTACT TEXT)")

#defining function for creating GUI Layout
def DisplayForm():
    #creating window
    display_screen = Tk()
    #setting width and height for window
    display_screen.geometry("900x400")
    #setting title for window
    display_screen.title("krazyprogrammers.com presents")
    global tree
    global SEARCH
    global fname,lname,gender,address,contact
    SEARCH = StringVar()
    fname = StringVar()
    lname = StringVar()
    gender = StringVar()
    address = StringVar()
    contact = StringVar()
    #creating frames for layout
    #topview frame for heading
    TopViewForm = Frame(display_screen, width=600, bd=1, relief=SOLID)
    TopViewForm.pack(side=TOP, fill=X)
    #first left frame for registration from
    LFrom = Frame(display_screen, width="350",bg="#15244C")
    LFrom.pack(side=LEFT, fill=Y)
    #seconf left frame for search form
    LeftViewForm = Frame(display_screen, width=500,bg="#0B4670")
    LeftViewForm.pack(side=LEFT, fill=Y)
    #mid frame for displaying lnames record
    MidViewForm = Frame(display_screen, width=600)
    MidViewForm.pack(side=RIGHT)
    #label for heading
    lbl_text = Label(TopViewForm, text="Contact Management System", font=('verdana', 18), width=600,bg="cyan")
    lbl_text.pack(fill=X)
    #creating registration form in first left frame
    Label(LFrom, text="First Name  ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom,font=("Arial",10,"bold"),textvariable=fname).pack(side=TOP, padx=10, fill=X)
    Label(LFrom, text="Last Name ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom, font=("Arial", 10, "bold"),textvariable=lname).pack(side=TOP, padx=10, fill=X)
    Label(LFrom, text="Gender ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    #Entry(LFrom, font=("Arial", 10, "bold"),textvariable=gender).pack(side=TOP, padx=10, fill=X)
    gender.set("Select Gender")
    content={'Male','Female'}
    OptionMenu(LFrom,gender,*content).pack(side=TOP, padx=10, fill=X)


    Label(LFrom, text="Address ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom, font=("Arial", 10, "bold"),textvariable=address).pack(side=TOP, padx=10, fill=X)
    Label(LFrom, text="Contact ", font=("Arial", 12),bg="#15244C",fg="white").pack(side=TOP)
    Entry(LFrom, font=("Arial", 10, "bold"),textvariable=contact).pack(side=TOP, padx=10, fill=X)
    Button(LFrom,text="Submit",font=("Arial", 10, "bold"),command=register,bg="#15244C",fg="white").pack(side=TOP, padx=10,pady=5, fill=X)

    #creating search label and entry in second frame
    lbl_txtsearch = Label(LeftViewForm, text="Enter fname to Search", font=('verdana', 10),bg="#0B4670")
    lbl_txtsearch.pack()
    #creating search entry
    search = Entry(LeftViewForm, textvariable=SEARCH, font=('verdana', 15), width=10)
    search.pack(side=TOP, padx=10, fill=X)
    #creating search button
    btn_search = Button(LeftViewForm, text="Search", command=SearchRecord,bg="cyan")
    btn_search.pack(side=TOP, padx=10, pady=10, fill=X)
    #creating view button
    btn_view = Button(LeftViewForm, text="View All", command=DisplayData,bg="cyan")
    btn_view.pack(side=TOP, padx=10, pady=10, fill=X)
    #creating reset button
    btn_reset = Button(LeftViewForm, text="Reset", command=Reset,bg="cyan")
    btn_reset.pack(side=TOP, padx=10, pady=10, fill=X)
    #creating delete button
    btn_delete = Button(LeftViewForm, text="Delete", command=Delete,bg="cyan")
    btn_delete.pack(side=TOP, padx=10, pady=10, fill=X)
    #create update button
    btn_delete = Button(LeftViewForm, text="Update", command=Update,bg="cyan")
    btn_delete.pack(side=TOP, padx=10, pady=10, fill=X)
    #setting scrollbar
    scrollbarx = Scrollbar(MidViewForm, orient=HORIZONTAL)
    scrollbary = Scrollbar(MidViewForm, orient=VERTICAL)
    tree = ttk.Treeview(MidViewForm,columns=("Student Id", "Name", "Contact", "Email","Rollno","Branch"),
                        selectmode="extended", height=100, yscrollcommand=scrollbary.set, xscrollcommand=scrollbarx.set)
    scrollbary.config(command=tree.yview)
    scrollbary.pack(side=RIGHT, fill=Y)
    scrollbarx.config(command=tree.xview)
    scrollbarx.pack(side=BOTTOM, fill=X)
    #setting headings for the columns
    tree.heading('Student Id', text="Id", anchor=W)
    tree.heading('Name', text="FirstName", anchor=W)
    tree.heading('Contact', text="LastName", anchor=W)
    tree.heading('Email', text="Gender", anchor=W)
    tree.heading('Rollno', text="Address", anchor=W)
    tree.heading('Branch', text="Contact", anchor=W)
    #setting width of the columns
    tree.column('#0', stretch=NO, minwidth=0, width=0)
    tree.column('#1', stretch=NO, minwidth=0, width=100)
    tree.column('#2', stretch=NO, minwidth=0, width=150)
    tree.column('#3', stretch=NO, minwidth=0, width=80)
    tree.column('#4', stretch=NO, minwidth=0, width=120)
    tree.pack()
    DisplayData()
#function to update data into database
def Update():
    Database()
    #getting form data
    fname1=fname.get()
    lname1=lname.get()
    gender1=gender.get()
    address1=address.get()
    contact1=contact.get()
    #applying empty validation
    if fname1=='' or lname1==''or gender1=='' or address1==''or contact1=='':
        tkMessageBox.showinfo("Warning","fill the empty field!!!")
    else:
        #getting selected data
        curItem = tree.focus()
        contents = (tree.item(curItem))
        selecteditem = contents['values']
        #update query
        conn.execute('UPDATE REGISTRATION SET FNAME=?,LNAME=?,GENDER=?,ADDRESS=?,CONTACT=? WHERE RID = ?',(fname1,lname1,gender1,address1,contact1, selecteditem[0]))
        conn.commit()
        tkMessageBox.showinfo("Message","Updated successfully")
        #reset form
        Reset()
        #refresh table data
        DisplayData()
        conn.close()

def register():
    Database()
    #getting form data
    fname1=fname.get()
    lname1=lname.get()
    gender1=gender.get()
    address1=address.get()
    contact1=contact.get()
    #applying empty validation
    if fname1=='' or lname1==''or gender1=='' or address1==''or contact1=='':
        tkMessageBox.showinfo("Warning","fill the empty field!!!")
    else:
        #execute query
        conn.execute('INSERT INTO REGISTRATION (FNAME,LNAME,GENDER,ADDRESS,CONTACT) \
              VALUES (?,?,?,?,?)',(fname1,lname1,gender1,address1,contact1));
        conn.commit()
        tkMessageBox.showinfo("Message","Stored successfully")
        #refresh table data
        DisplayData()
        conn.close()
def Reset():
    #clear current data from table
    tree.delete(*tree.get_children())
    #refresh table data
    DisplayData()
    #clear search text
    SEARCH.set("")
    fname.set("")
    lname.set("")
    gender.set("")
    address.set("")
    contact.set("")
def Delete():
    #open database
    Database()
    if not tree.selection():
        tkMessageBox.showwarning("Warning","Select data to delete")
    else:
        result = tkMessageBox.askquestion('Confirm', 'Are you sure you want to delete this record?',
                                          icon="warning")
        if result == 'yes':
            curItem = tree.focus()
            contents = (tree.item(curItem))
            selecteditem = contents['values']
            tree.delete(curItem)
            cursor=conn.execute("DELETE FROM REGISTRATION WHERE RID = %d" % selecteditem[0])
            conn.commit()
            cursor.close()
            conn.close()

#function to search data
def SearchRecord():
    #open database
    Database()
    #checking search text is empty or not
    if SEARCH.get() != "":
        #clearing current display data
        tree.delete(*tree.get_children())
        #select query with where clause
        cursor=conn.execute("SELECT * FROM REGISTRATION WHERE FNAME LIKE ?", ('%' + str(SEARCH.get()) + '%',))
        #fetch all matching records
        fetch = cursor.fetchall()
        #loop for displaying all records into GUI
        for data in fetch:
            tree.insert('', 'end', values=(data))
        cursor.close()
        conn.close()
#defining function to access data from SQLite database
def DisplayData():
    #open database
    Database()
    #clear current data
    tree.delete(*tree.get_children())
    #select query
    cursor=conn.execute("SELECT * FROM REGISTRATION")
    #fetch all data from database
    fetch = cursor.fetchall()
    #loop for displaying all data in GUI
    for data in fetch:
        tree.insert('', 'end', values=(data))
        tree.bind("<Double-1>",OnDoubleClick)
    cursor.close()
    conn.close()
def OnDoubleClick(self):
    #getting focused item from treeview
    curItem = tree.focus()
    contents = (tree.item(curItem))
    selecteditem = contents['values']
    #set values in the fields
    fname.set(selecteditem[1])
    lname.set(selecteditem[2])
    gender.set(selecteditem[3])
    address.set(selecteditem[4])
    contact.set(selecteditem[5])

#calling function
DisplayForm()
if __name__=='__main__':
    #Running Application
    mainloop()

When you will run this code you will get output screen like below and you can see the i have added all operational buttons on a single page for your simplicity.

Registration: This is the window screen of this project , Just fill the details and press submit button to insert record.

here in the above screenshot you can see that i have registered two records.

Update: To update data double click on any record, as you double click on any record all the data of that particular record will be filled into text boxes and then change the data that you want to change and then click on update to make changes in the database.

Delete: To delete the particular record from database , select any record from table and then click on delete button to delete that record.

Search Record: TO search a particular record from database type the name of person in the given textbox and press search button to get particular record from database.

I hope now you can  create "Contact Management System Project in Python with SQLite". If you have any doubt regarding this post  or you want something more in this post then let me know by comment below i will work on it definitely.

 

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