sleep

I was writing a simple program on Python 3.1 and I stumbled upon this: If I run this on the IDLE it works as intended - prints "Initializing." and then adds two dots, one after each second, and waits for input. from time import sleep def initialize(): print('Initializing.', end='') sleep(1) print(" .", end='') sleep(1) print(" .", end='') input() initialize() The problem is that when I double-click the .py to execute the file, it runs on python.exe instead of pythonw.exe, and strange things happen: it joins all the sleep() times i.e. makes me wait for 2 seconds, and then prints the whole

I implemented the following background processing thread, where Jobs is a Queue<T> : static void WorkThread() { while (working) { var job; lock (Jobs) { if (Jobs.Count > 0) job = Jobs.Dequeue(); } if (job == null) { Thread.Sleep(1); } else { // [snip]: Process job. } } } This produced a noticable delay between when the jobs were being entered and when they were actually starting to be run (batches of jobs are entered at once, and each job is only [relatively] small.) The delay wasn't a huge deal, but I got to thinking about the problem, and made the following change: static ManualResetEvent

I used to see Sleep(0) in some part of my code where some infinite/long while loops are available. I was informed that it would make the time-slice available for other waiting processes. Is this true? Is there any significance for Sleep(0) ? According to MSDN's documentation for Sleep : A value of zero causes the thread to relinquish the remainder of its time slice to any other thread that is ready to run. If there are no other threads ready to run, the function returns immediately, and the thread continues execution. The important thing to realize is that yes, this gives other threads a

I know there is Thread.Sleep and System.Windows.Forms.Timer and Monitor.Wait in C# and Windows Forms. I just can't seem to be able to figure out how to wait for X seconds and then do something else - without locking the thread. I have a form with a button. On button click a timer shall start and wait for 5 seconds. After these 5 seconds some other control on the form is colored green. When using Thread.Sleep , the whole application would become unresponsive for 5 seconds - so how do I just "do something after 5 seconds"? eFloh (transcribed from Ben as comment) just use System.Windows.Forms

I want to perform an action at a regular interval in my multi-threaded Python application. I have seen two different ways of doing it exit = False def thread_func(): while not exit: action() time.sleep(DELAY) or exit_flag = threading.Event() def thread_func(): while not exit_flag.wait(timeout=DELAY): action() Is there an advantage to one way over the other? Does one use less resources, or play nicer with other threads and the GIL? Which one makes the remaining threads in my app more responsive? (Assume some external event sets exit or exit_flag , and I am willing to wait the full delay while