How should I measure number of seconds passed in a infinite loop? I'm using Vpython, and in my loop i change a position of some elements etc. The thing is that i have to change color of lights(sphere) every X seconds and it all happens in infinite loop.
while True: #some stuff 'here i have to count those seconds' #some other stuff You could determine the elapsed time by calling time.time(), and taking the difference.
i have to change color of lights(sphere) every X seconds
Say you last changed the colour at time T. Keep calling time.time() inside the loop, and change the colour again when time.time() - T exceeds X.
You should probably use timeit.default_timer() to figure out what time it is and compute the difference.
e.g.:
from timeit import default_timer clock_start = default_timer() #... do something here clock_end = default_timer() print "This took %s seconds" %( clock_end - clock_start ) 