Counting time
Although both stopwatch and the regular clock ultimately just display time, they are completely different in terms of functionality. Wall clock is a strictly increasing monotonic function, while stopwatch time can be paused and reset, decreasing the counter. More practically, the difference is that the operating system readily exposes its internal wall clock to Python, both directly as a datetime object and transparently in the case of the strftime() function. The latter can be called without a datetime argument to format the current time, which is exactly what we need for a wall clock display.
For the task of creating a stopwatch, we will need to build our own, non-monotonic time counter first. This is easily achieved without using ...
Get Kivy Blueprints now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
