Stopwatch Using Python Tkinter

   May 9, 2022
Stopwatch Using Python Tkinter

Introduction

We are all familiar with the stopwatch. And, it is possible to create a Stopwatch Using Python. According to our information, the DateTime module is already available in Python. We can use that module to create a timer in Python. We are hoping that this content will be fantastic. You can use this as a primary-level Python mini-project. Click here for the complete source code. Let’s get started.

Implementation for Stopwatch Using Python in Tkinter

Step1. Importing libraries and initializing variables

from tkinter import *
import sys
import time
global count
count =0

To make a timer in Python, we must first import the Tkinter package. To obtain a time, import the DateTime module. Declaring the count as global and setting it to zero.

Step 2. Stopwatch Class

class stopwatch():
    def reset(self):
        global count
        count=1
        self.t.set('00:00:00')

In Python code, create a stopwatch class. Create a function to conduct a reset action after creating a class. This function resets the timing to 00:00:00, akin to restarting the stopwatch.

Step 3. Start method for Stopwatch Using Python

    def start(self):
        global count
        count=0
        self.timer()

To start the stopwatch, write a function called start. This feature is useful for starting the stopwatch.

Step 4. Stop method

    def stop(self):
        global count
        count=1

To stop the stopwatch, we need a stop function. To conduct the stop operation in the stopwatch, we must write another function called to stop.

Step 5. Close method

    def close(self):
        self.root.destroy()

When creating applications, always include an exit button. That will make an excellent first impression on your application. To conduct the exit procedure, we must develop a function called close. When we click the exit button, it will exit the application.

Step 6. Create the timer method

    def timer(self):
        global count
        if(count==0):
            self.d = str(self.t.get())
            h,m,s = map(int,self.d.split(":")) 
            h = int(h)
            m=int(m)
            s= int(s)
            if(s<59):
                s+=1
            elif(s==59):
                s=0
                if(m<59):
                    m+=1
                elif(m==59):
                    m=0
                    h+=1
            if(h<10):
                h = str(0)+str(h)
            else:
                h= str(h)
            if(m<10):
                m = str(0)+str(m)
            else:
                m = str(m)
            if(s<10):
                s=str(0)+str(s)
            else:
                s=str(s)
            self.d=h+":"+m+":"+s           
            self.t.set(self.d)
            if(count==0):
                self.root.after(1000,self.timer)

Create a timer function to run the stopwatch. I hope you saw that I named a functioning self.timer(). So, when the program sees that sentence, it will call this function and do the task specified in the timer function.

Step 7. Creating the init method for Stopwatch Using Python

    def __init__(self):
        self.root=Tk()
        self.root.title("Stop Watch")
        self.root.geometry("600x200")
        self.t = StringVar()
        self.t.set("00:00:00")
        self.lb = Label(self.root,textvariable=self.t,font=("Times 40 bold"),bg="white")
        self.bt1 = Button(self.root,text="Start",command=self.start,font=("Times 12 bold"),bg=("#F88379"))
        self.bt2 = Button(self.root,text="Stop",command=self.stop,font=("Times 12 bold"),bg=("#F88379"))
        self.bt3 = Button(self.root,text="Reset",command=self.reset,font=("Times 12 bold"),bg=("#DE1738"))
        self.bt4 = Button(self.root, text="Exit", command=self.close,font=("Times 12 bold"),bg=("#DE1738"))
        self.lb.place(x=160,y=10)
        self.bt1.place(x=120,y=100)
        self.bt2.place(x=220,y=100)
        self.bt3.place(x=320,y=100)
        self.bt4.place(x=420,y=100)
        self.label = Label(self.root,text="",font=("Times 40 bold"))
        self.root.configure(bg='white')
        self.root.mainloop()
a=stopwatch()

Following that, we add an init function in this program, as well as a button for each operation. Furthermore, this function will invoke all of the functions. To improve our timer, we’re changing the backdrop colors of the letters.

Complete source code for Stopwatch using Python Tkinter

from tkinter import *
import sys
import time
global count
count =0
class stopwatch():
    def reset(self):
        global count
        count=1
        self.t.set('00:00:00')        
    def start(self):
        global count
        count=0
        self.timer()   
    def stop(self):
        global count
        count=1
    def close(self):
        self.root.destroy()
    def timer(self):
        global count
        if(count==0):
            self.d = str(self.t.get())
            h,m,s = map(int,self.d.split(":")) 
            h = int(h)
            m=int(m)
            s= int(s)
            if(s<59):
                s+=1
            elif(s==59):
                s=0
                if(m<59):
                    m+=1
                elif(m==59):
                    m=0
                    h+=1
            if(h<10):
                h = str(0)+str(h)
            else:
                h= str(h)
            if(m<10):
                m = str(0)+str(m)
            else:
                m = str(m)
            if(s<10):
                s=str(0)+str(s)
            else:
                s=str(s)
            self.d=h+":"+m+":"+s           
            self.t.set(self.d)
            if(count==0):
                self.root.after(1000,self.timer)     
    def __init__(self):
        self.root=Tk()
        self.root.title("Stop Watch")
        self.root.geometry("600x200")
        self.t = StringVar()
        self.t.set("00:00:00")
        self.lb = Label(self.root,textvariable=self.t,font=("Times 40 bold"),bg="white")
        self.bt1 = Button(self.root,text="Start",command=self.start,font=("Times 12 bold"),bg=("#F88379"))
        self.bt2 = Button(self.root,text="Stop",command=self.stop,font=("Times 12 bold"),bg=("#F88379"))
        self.bt3 = Button(self.root,text="Reset",command=self.reset,font=("Times 12 bold"),bg=("#DE1738"))
        self.bt4 = Button(self.root, text="Exit", command=self.close,font=("Times 12 bold"),bg=("#DE1738"))
        self.lb.place(x=160,y=10)
        self.bt1.place(x=120,y=100)
        self.bt2.place(x=220,y=100)
        self.bt3.place(x=320,y=100)
        self.bt4.place(x=420,y=100)
        self.label = Label(self.root,text="",font=("Times 40 bold"))
        self.root.configure(bg='white')
        self.root.mainloop()
a=stopwatch()

Output:

output for Stopwatch Using Python Tkinter

In this tutorial, we learned how to create a Stopwatch Using Python Tkinter. This article will be useful for all Python beginners. Learn it completely. Try to solve the code on your own. If you have any questions, please leave them in the comment section.

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Author: Ayush Purawr