So I'm very new to Python so I'm not sure of the correct way to do what I need.
Basically I am creating a laser tag game. The whole game is controlled by some python code that runs on a PC, the hardware is basically just inputs and outputs for this code.
I want to have game files that are simple files with just the code for the game itself, that way it is fairly easy for anyone to make their own game modes.
Then there needs to be a main program with a GUI (Probably Tkinter) and code to handle sending/receiving information from the hardware (Laser tag guns). I need some way to select a game file from the GUI and run it, but I still need the main server code to be running (to take care of sending and receiving information from the guns, displaying live scores on the GUI, etc).
What would be the best (preferably fairly simple) way to go about doing something like this? Thanks!
Cool project! Generally you let TkInter run in the main thread, and have the other tasks executed in other threads or processes. Brace for some hacking, parallelism is unfortunately pretty difficult to do right.
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
Update: My problem is solved.
My fault is totally misunderstanding kivy, if your variable is changing over time, you have to trigger this on python (e.g clock.schedule).
Sorry for my English, it's not my native.
I try to write a Gui for my automation code (checking gmail, reading e-mail, do some simple actions on web). Main Python-selenium code is ready and working well.
My questions is how can i establish a communication between py code and kv code? I'll generate a python text variable, work as an simple event log and I need to update (grow-expand) a label text on kivy side simultaneously.
I have a GUI program built using Tkinter in python 2.7.10.
It works flawlessly, for it's root cause anyways.
Unfortunately, it briefly goes into windows dreaded "Not Responding" state when being interacted with.
Here's the layout in short:
Launch script launches Main script.
Main script reads settings file and boots GUI script.
GUI script starts GUI.
User enters a term to search for in a series of files.
GUI script goes into a side script to process files and retrieve results.
Side script inherits certain aspects of GUI script.
Side script attempts to update user while working using the inherited elements; the GUI has none of it.
GUI goes non-responsive briefly before returning to the GUI script and displaying the results.
Here's how I need it to go in short:
Launch script launches Main script.
Main script reads settings file and boots GUI script.
GUI script starts GUI.
User enters a term to search for in a series of files.
GUI script goes into a side script to process files and retrieve results.
Side script inherits certain aspects of GUI script.
Side script updates the user with a progress bar and imagery while working, using the GUI elements.
GUI returns to the GUI script and displays the results.
I have the progress bar built, but the imagery is not yet, but if the progress bar will not work, I will not waste my time on the imagery.
Sample impossible, not-being-used-but-shows-the-point code;
GUI;
import Tkinter, PIL, SideScript1
Tkinter()
ShowText()
ShowStuff()
input = GetInput()
ShowProgressBar()
SideScript1.processfilesbasedoninput(input, progressbarcontrolvar)
DisplayResults()
SideScript1
def proccessfilesbasedoninput(input, pbcv):
DoStuff()
pbcv.gofurther(5)
DoMoreStuff()
pbcv.goevenfurther(10)
a1sauce = RandomMathsStuffs()
for all the data in every file in that one directory:
ReadData()
pbcv.goabitfurther(a1sauce)
if data is what I want:
break
pbcv.step(-100)
return data
I guess my question is, How would I get the GUI to update those elements instead of going unconscious?
We are talking 100 000 files and 1.5 seconds its done in.
UPDATE: This question has been marked as a duplicate of another. Is it? Yep. but that's both because I was ((and still am)) unsure of how to search for this kind of question, and that the three solutions there; multithreading, multiprocessing, and smaller tasks. Unfortunately, the program was built to run on a single thread and process, and without a complete rewrite, getting the intended GUI response would cause a massive slowdown, if it worked at all.
I do see the issue, being TKinter is a blocking module. Unfortunately, I am fresh out of ideas on how I would un-block it without causing mass errors, and or a total rewrite.
The linked duplicate question held an answer. A bad one - but an answer none the less.
update_idletasks.
I tried that, and, it Worked! Well. Sort of.
It worked at first, then the same result came about. The GUI temporarily froze.
Then an idea popped in my head. Why not try update instead?
I did so, and it worked as I needed it to, however, it had a massive performance hit - nearly identical to update_idletasks.
To tackle this new problem, I added a bit more math to cause updates to happen, in my case, every 300 files, instead of every single file-balancing the performance hit and users not instantly deleting my program, because yes, it takes a toll on your resources. No, I did not initially heed that advice. Shoot first, ask questions later, right?
How did I use it? Glad I asked! Here's an example;
#GUI Code
DoStuff()
SideScript1.proccessdata(arg, kwarg, debate)
DoMoreStuff()
#File Management Code
DoStuff()
filenumber = 0
maxfilenumber = 0
for every file I need to search:
SearchFile()
filenumber +=1
if filenumber == maxfilenumber:
tkinter.update() #in my case, it was tkinst, or "TkInter Instance", since it was inherited from the GUI attributes.
filenumber = 0
if data is what I want:
break
return data
I'm not sure about all the backend and hard facts, but update() seemed a lot more user friendly and quicker than update_idletasks(), and a lot less prone to errors and slowdowns as well.
My shenanigans are now back in order, running in 60 ((30? 120? 250 million??)) frames a seconds, smoothly and efficiently - and Tk doesn't have a sit-down strike every time I ask it for info anymore!
Thanks #Rawing for the attempt to help!
I am currently trying to create a python script that will listen for a keypress, specifically numpad along with the Numlock, / , * ect. The script will eventually be added to a shared memory script I wrote and will be run as a daemon.
I need this listener to be independent of of any open window or focus. A key logger if you will, so no matter what i am doing if i press a key it will be picked up by my script.
The trouble i am having at the moment is poor documentation of most things i find and python is not my main language. I have found pygame, termios and some others but i cant seem to find a straight forward solution.
So basically my question is, how can i capture a keypress regardless of the current active window?
Library recomendations, code or anything would be a massive help as i have been stuck on this for quite some time.
Thank you.