Create a stopwatch using Python

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mahmoud2506

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2022-05-19

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The task is to create a stopwatch.

In the below program, the stopwatch will be started when you press the ENTER key and stopped when you press the CTRL+C key.

Logic: To run the stopwatch (count the time), we are writing the code in an infinite loop, start time will be saved in start_time variable as you press the ENTER and when you press the CTRL + C a KeyboardInterrupt exception will generate and we will again get the time, which will be considered as end_time. Now, to calculate the difference – we will simply subtract the time from end_time to start_time.

To get the time in seconds, we are using time() function of the time module. So, you need to import the time module first.

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mahmoud2506

2022-05-19

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Python code for a stopwatch

# Python code for a stopwatch

# importing the time module 
import time

print("Press ENTER to start the stopwatch")
print("and, press CTRL + C to stop the stopwatch")

# infinite loop
while True:
    try:
        input() #For ENTER
        start_time = time.time()
        print("Stopwatch started...")
        
    except KeyboardInterrupt:
        print("Stopwatch stopped...")
        end_time = time.time()
        print("The total time:", round(end_time - start_time, 2),"seconds")
        break # breaking the loop

Output

Press ENTER to start the stopwatch
and, press CTRL + C to stop the stopwatch

Stopwatch started...
^CStopwatch stopped...
The total time: 15.81 seconds

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