![]() ![]() You can find the code for these inputs at the bottom of the program below the countdown class. Our countdown timer works by having a user input the number of hours, minutes, and seconds for the timer. Import timeimport datetime# Create class that acts as a countdowndef countdown(h, m, s): # Calculate the total number of seconds total_seconds = h * 3600 + m * 60 + s # While loop that checks if total_seconds reaches zero # If not zero, decrement total time by one second while total_seconds > 0: # Timer represents time left on countdown timer = datetime.timedelta(seconds = total_seconds) # Prints the time left on the timer print(timer, end="\r") # Delays the program one second time.sleep(1) # Reduces total time by one second total_seconds -= 1 print("Bzzzt! The countdown is at zero seconds!")# Inputs for hours, minutes, seconds on timerh = input("Enter the time in hours: ")m = input("Enter the time in minutes: ")s = input("Enter the time in seconds: ")countdown(int(h), int(m), int(s)) Finally, we set the value variable so the user can type “Q” or “q” to end the program. We use the variable lasttime to catalog each lap, whereas totaltime holds the value for the entire time the stopwatch runs. The stopwatch will count forward from this time. "+str(lapnum)) print("Total Time: "+str(totaltime)) print("Lap Time: "+str(laptime)) print("*"*20) # Updating the previous total time and lap number lasttime = time.time() lapnum += 1 print("Exercise complete!")Īfter importing the time module, we set time.time() to the start time of our timer. Import time # Timer startsstarttime = time.time()lasttime = starttimelapnum = 1value = "" print("Press ENTER for each lap.\nType Q and press ENTER to stop.") while value.lower() != "q": # Input for the ENTER key press value = input() # The current lap-time laptime = round((time.time() - lasttime), 2) # Total time elapsed since the timer started totaltime = round((time.time() - starttime), 2) # Printing the lap number, lap-time, and total time print("Lap No. This module contains the functions we’ll need to build a simple timer in Python. One of the 200 modules in Python’s standard library is the time module. You can even create your own modules to use in future programs. The Python programming language has over 200 predefined modules within its standard library. By importing a module into your program, you can make use of each component inside the module. Modules in Python are files that contain classes, functions, variables, and runnable code. To create a simple timer in Python, you’ll need to call upon Python’s time and datetime modules. The possibilities are endless! Modules in Python They are also used to count down the hours and minutes to a movie release or big event. Countdown timers can also work to display the time remaining in a sporting event or during an exam. You can use Python to build countdown timers that serve different purposes.įor instance, you can build a cooking countdown timer to ensure you don’t leave food in the oven for too long. There are also countdown timers, set with a specific amount of time that depletes until the timer reaches zero. ![]()
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