#! python3
"""Stopwatch
A simple stopwatch program with lap times.
"""
[docs]def main():
import time
# Display the program's instructions
print("Press ENTER to begin. Afterwards, press ENTER to 'click' the stopwatch. "
"Press CTRL-C to quit.")
input() # Press Enter to begin
print('Started.')
startTime = time.time() # Get the first lap's start time
lastTime = startTime
lapNum = 1
# Start tracking the lap times.
try:
while True:
input()
lapTime = round(time.time() - lastTime, 2)
totalTime = round(time.time() - startTime, 2)
print("Lap #%s: %s (%s)" % (lapNum, totalTime, lapTime), end='')
lapNum += 1
lastTime = time.time() # reset the last lap time
except KeyboardInterrupt:
# Handle the CTRL-C exception to keep its error message from displaying.
print("\nDone.")
if __name__ == '__main__':
main()