I want to make a program stop running for a certain amount of time to save CPU power. I have a self.after function that I want to run to make the program stop running for a set amount of time. However, it always crashes the program.
self.after(int(self.timeSleep*1000),print("Sleeping."))
The word Sleeping. is printed but the window crashes. I thought that Sleeping. should only be printed after the "sleep" was done. I'm not sure what I'm doing wrong and I couldn't find another question like this. Forgive me if it's a stupid mistake as it's my first time using TKinter.
Thanks in advance.
EDIT:
I am not getting any errors in my terminal. By crash I mean the window stops responding.
Your code has the same effect as below:
execute print("Sleeping.")
execute self.after(int(self.timeSleep*1000), None) which is the same as time.sleep(int(self.timeSleep*1000)).
You need to change it to use lambda:
self.after(int(self.timeSleep*1000), lambda: print("Sleeping."))
I found a solution that doesn't require using self.after. Instead, you can use a thread to run this specific method, allowing you to use while loops and time.sleep without crashing the main GUI program.
Related
I am making turn based game in python using Pyglet. The game has a player-vs-AI mode in which the bot calculates a move to play against the player. However, the function which calculates the bot's move takes around 3-5 seconds to run, blocking the game's UI. In order to get around this, I am running the bot's calculation on a second process using multiprocessing.Process. I got it to work well without blocking the UI, however every time I open the second process to run the function a new Pyglet window opens, then closes again when the process is closed. Is there any way to open a second process in a Pyglet program without a second window opening? Let me know if examples of my code is required, and I will try to come up with similar code to share. Thanks in advance to anyone who can help.
You can fix the problem by moving the initialization of the window inside of the main block
I have a program that I'm currently using tkinter to pop up a window and use the root.title of the window as a counter. I call this program through subprocess mutliple times, aka multiple windows pop up and display that I only have to look at the counter to see how long before each of the programs is finished running.
I want to know how long before each and every process is finished. Doing a bit of testing I don't believe using subprocess it will report back to IDLE and show a counter using print(). At least it doesn't appear to be doing so right now for me.
Is there any way of accomplishing this same task without using tkinter?
Below is the link to the other open question right now that I'm currently using to open the tkinter window that closes on me unexpectedly. I'm not completely sure when a windows closes if the whole program stops running or if just the windows closes. Hence why I want the counter...hence why I have always been using a tkinter window as I don't know of any other way of doing this that serves the same purpose.
I want the counter so I can tell the program was finished if my internet connection gets dropped. I don't have internet access at home so I'm always using free-wifi which quite often has timeouts on it. I want to know for sure whether the programs have finished running or if I got timedout and need to rerun the program.
Python program terminating unexpectedly
I've done a reasonable amount of coding with the libtcod library, both the C# and python wrappers. My current setup is KUbuntu 14.10, python 2.7.8, and libtcod 1.5.2.
I've made a few programs that work fine, but the latest I've just started doesn't seem to want to allow me to close the console window.
I can send a CTRL+C from the console that I run the program from, and it will close, but, no amount of clicking on the window's "x" button, or Alt+F4s seem to work.
My code is as follows:
'''
justclose.py
'''
import sys
import time
import libtcodpy as libtcod
libtcod.console_set_custom_font(b'lucida12x12_gs_tc.png', libtcod.FONT_TYPE_GREYSCALE | libtcod.FONT_LAYOUT_TCOD)
libtcod.console_init_root(50,50, "The ever-present window", False)
libtcod.console_flush()
while not libtcod.console_is_window_closed():
time.sleep(1)
sys.exit
When I run the program, the console comes up, as expected, and sits around waiting for console_is_window_closed to return true, which it never does. I'm not sure where the problem lies. I can run other programs that use the same initialisation code, and same while loop and which respond just fine to me clicking the close button on the console window.
I've tried looking through an strace of the process, but, I'm not sure I'm up to the task of deciphering it. Nothing looked immediately out of the ordinary.
I'd like some advice on how to track down what's going wrong. Thanks.
EDIT: specifically, I'd like to know how I can check that the close window event is propagating at all, and if so, how far, where it's getting trapped/ignored, that sort of thing. When I run through strace, I see absolutely nothing happening when I click the close button. Is there some better way to debug this?
Replace time.sleep(1) with libtcod.console_check_for_keypress(). When the program sleeps 1 millisecond for each iteration, the program can not respond when you press X. It exits when you press CTRL+C because the program receives the SIGINT signal and it exits immediately. Replacing time.sleep(1) with libtcod.console_check_for_keypress() makes the program check the key pressed on the keyboard, if there is one. That way, the program doesn't block the execution.
I'd like to know how to have a program wait for another program to finish a task. I'm not sure what I'd look for for that...
Also, I'm using a mac.
I'd like to use Python or perhaps even applescript (I could just osascript python if the solution if for applescript anyway)
Basically this program "MPEGstreamclip" converts videos, and it opens what appears to be 2 new windows while it's converting. One window is a conversion progress bar, and the other window is a preview of the conversion. (Not sure if these actually count as windows)
(Also, MPEGstreamclip does not have an applescript dictionary, so as far as I know, it can't listen for certain window names existence)
But basically I want my program to listen for when MPEGstreamclip is done, and then run its tasks.
If it helps, when the conversion is done, the mpegstreamclip icon in the dock bounces once. I'm not sure what that means but I'd think you could use that to trigger something couldn't you?
Thanks!
I realized GUI applescript was the answer in this scenario. With it I could tell the PROCESS to get every window, and that worked. However, I'm leaving this up because I'd like to know other ways. I'm sure this GUI workaround won't work for everything.
If the MPEGstreamclip actually ends when it is done, you could wrap the whole thing up in a python script using various techniques already discussed in another post. Just be sure to wait for the external process to end before continuing with your other steps.
I have some code:
l1 = clutter.Label()
l1.set_position(100,100)
for i in range(0,10):
l1.set_text(str(i))
time.sleep(1)
That is designed to show a count from 1 to 10 seconds on the screen in clutter, but I'm getting a strange error. When I run the script normally the screen runs as it should do, but there is no text displayed until 10 seconds are up. However, When I run with breakpoints in pdb the text shows up just fine.
I'm also getting a strange error at the start of the program:
do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly.
Try adjusting the vlank_mode configuration parameter.
But I don't see why that would affect the code out of break points but not in breakpoints.
Any help would be greatly appreciated.
Not sure if you've already figured out the answer to this but:
The reason you are having this problem is because you are blocking the main thread (where all the drawing occurs) with your time.sleep() calls, preventing the library from redrawing the screen.
E.g. your code is currently doing this:
Clutter redraws the screen.
You loop over ten seconds and change the text ten times.
Clutter redraws the screen.
If you want to queue something on a timer, you should look into gobject.timeout_add.
Have you tried posting (or searching) on the Clutter mailing list? Here's someone who got the same message about drmWaitVBlank for example.
My guess is most people on SO wouldn't be familiar with solving Clutter problems. I know I'm not :)