Creating my First GUI Application using Python
We will learn
• Creating GUI Window in python: Tkinter
• Using nested loops
• Playing sound in python
How this program works ( General Logic )––––
Problems Faced–––
I wanted a GUI program, so I used Tkinter, but the timer variable(stime) was not updating causing no output in the GUI window.
So, I used the update() function in Tkinter to update ‘stime’, every time I set the value to stime in the loop.
Program:
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from tkinter import *
import time
import playsound
self = Tk()
# setting the title for our window
self.title("Excercise Timer")
#configuring background colour for our window
self.configure(bg="black")
#creating a variable basically this is our timer label
stime = StringVar()
#setting the initial value of the variable
stime.set("00")
#function
def func():
nsets = int(setsVar.get()) #getting values from the sets entry
wt = int(wtimeVar.get())# getting valuers from workout time entry
rt = int(rtimeVar.get())# getting values from the relax time entry
for count in range(nsets):
playsound.playsound("start.mp3") # using play sound module to play the sound from selected file
for count in range(1, wt + 1): # this is a loop of range workout time
t = (wt - count) # initializing a local variable for the value of the second
stime.set(t) # setting the value 't' to our timer label
self.update() # updatind tkinter(GUI window) so that the value changes and updates in every loop
time.sleep(1) # this will wait for 1 sec and continues the loop
playsound.playsound("relax.mp3")# using play sound module to play the sound from selected file
for count in range(1, rt + 1):# this is a loop of range relax time
r = (rt - count) # initializing a local variable for the value of the second
stime.set(r) # setting the value 'r' to our timer label
self.update() # updatind tkinter(GUI window) so that the value changes and updates in every loop
time.sleep(1) # this will wait for 1 sec and continues the loop
playsound.playsound("congrats.mp3")# using play sound module to play the sound from selected file
# Now here we are setting our GUI window structure
#no.of exercises
# This will create a label named NO.OF Excersices
setsLabel = Label(self, text = "NO.OF Exercises" , bg='#000', fg='#fff') setsLabel.pack()
setsVar = DoubleVar() # creating a variable
# creating a entry for the label above and assingnig the variable to store the input
setsEntry = Entry(self, textvariable = setsVar, bg='#000', fg='#fff', justify='center')
setsEntry.pack()
#Workouts
# This will create a label named Workout Time(seconds)
wtimeLabel = Label(self, text = "Workout Time(seconds)", bg='#000', fg='#fff')
wtimeLabel.pack()
wtimeVar = DoubleVar() # creating a variable
# creating a entry for the label above and assingnig the variable to store the input
wtimeEntry = Entry(self, textvariable = wtimeVar, bg='#000', fg='#fff', justify='center')
wtimeEntry.pack()
# setting the deafault value of variable ; note since entry is assigned with this variable this reflects on the window
wtimeVar.set(45)
#relax time
# This will create a label named Relax Time(seconds)
rtimeLabel = Label(self, text="Relax time(seconds)",bg='#000', fg='#fff', )
rtimeLabel.pack()
rtimeVar = DoubleVar()
# creating a entry for the label above and assingnig the variable to store the input
rtimeEntry = Entry(self, textvariable=rtimeVar, bg='#000', fg='#fff', justify='center')
rtimeEntry.pack()
# setting the deafault value of variable ; note since entry is assigned with this variable this reflects on the window
rtimeVar.set(20)
#button
# setting up a button and assigning a function to perform when clicked.
b = Button(self, text = "START", command =func, bg='#000', fg='#000', pady=20, padx=5 )
b.pack()
# Timer Label
# note we have assigned the variable in the start of the script
# this is the label for our timer
stimeLabel = Label(self, textvariable=stime, font=("Arial", 90), bg='#000', fg='#fff')
# setting the height, width, padding in x and y directions of the label.
stimeLabel.pack(padx=90, pady = 40)
self.mainloop()# calling the program in a loop, functions untill the window is closed
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OUTPUT–––––––––––
while running
Default output(when opened)
NOTE::
to run the program successfully on your computer
You should have python installed and have the Timer.py file and the alarm file on the same folder .
change the name of the sound to your alarm file .
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