Build a Pomodoro timer in Python

Here’s a straightforward Pomodoro timer implemented in Python using the terminal. It includes work sessions and breaks, with countdown displayed every second.

python
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import time

def countdown(seconds):
    while seconds:
        mins, secs = divmod(seconds, 60)
        timer = f'{mins:02d}:{secs:02d}'
        print(f'r{timer}', end='')
        time.sleep(1)
        seconds -= 1
    print()

def pomodoro(work_duration=25, short_break=5, long_break=15, cycles=4):
    for cycle in range(1, cycles + 1):
        print(f'Starting work session {cycle}...')
        countdown(work_duration * 60)
        if cycle != cycles:
            print('Time for a short break.')
            countdown(short_break * 60)
        else:
            print('Time for a long break.')
            countdown(long_break * 60)
    print('Pomodoro sessions completed!')

if __name__ == "__main__":
    print("Pomodoro Timer")
    pomodoro()

How it works:

• By default, 25 minutes work, 5 minutes short break, 15 minutes long break, 4 cycles.

• It prints a live countdown in MM:SS format in the terminal.

• After completing 4 cycles, it signals the end.

You can modify pomodoro() parameters to customize durations or cycles. Let me know if you want a GUI version!