I am using time.sleep(10) in my program. Can display the countdown in the shell when I run my program?
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and then I want it to do 10,9,8,7....
is this possible?
user1681664user1681664you could always do
This snippet has the slightly annoying feature that each number gets printed out on a newline. To avoid this, you can
David ResnickYou can do a countdown function like:
The carriage return r
and the comma ,
will keep the print in the same line (avoiding one line for each countdown value)
As the number of seconds decreases, the pad_str will ensure the last line is overwritten with spaces instead of leaving the last character(s) behind as the output shortens.
The final print overwrites the last status message with a done message and increments the output line, so there is evidence of the delay.
Saullo G. P. CastroSaullo G. P. CastroThis is the best way to display a timer in the console for Python 3.x:
This writes over the previous line on each cycle.
This is something that I've learned at one of my first python lessons, we played with ['/','-','|',','|'] but the principle is the same:
Sure, just write a loop that prints 10 minus the iteration counter, then have it sleep 1 second each iteration and run for 10 iterations. Or, to be even more flexible:
Silas RaySilas Raytime.sleep()
may return earlier if the sleep is interrupted by a signal or later (depends on the scheduling of other processes/threads by OS/the interpreter).
To improve accuracy over multiple iterations, to avoid drift for large number of iterations, the countdown may be locked with the clock:
jfsjfsHere's one I did:
At the end if you and an else you can put an alarm or whatever.