Weird Threadpool error - Githubissues

Hi,

This is not a pygubu error per se - but a really weird error that I could not figure out. I have a piece of code that was working fine till recently.

It is a small batch image resizing program using Pillow.

The ThreadPool part of the code has not changed but recently it fails every time with my full processor (24) count. If I reduce the number of threads to 12-13, it completes the task. More than that it errors out with a bootstrap error.

However, if I compile the code (I have been using Nuitka) - I have no issues with the compiled exe file. It resizes any number of files without issues. I have been scratching my head for a few days now without any ideas in spite of trying everything. I would really appreciate any help you can suggest.

The problem code is below; (Apologies - I am new to github and could not figure out how to get the code looking formatted)

    exts = ['jpeg', 'jpg', 'png', 'gif', 'ico', 'tif', 'tiff','tga', 'bmp', 'webp', 'wmf']
    rawfileimgs = listdir(inpath)
    fixfileimages = self.fixlist(rawfileimgs, exts)
    fcount = len(fixfileimages)

    start = perf_counter()

    if not path.exists(outpath):
        makedirs(outpath)

    # run_process()
    core = int(self.v_cpu.get())
    prog_step = 100 / fcount
    count = 0

    with ThreadPoolExecutor(max_workers = core) as t:

        # Main image processing loop with multi-threading
        futures = [t.submit(self.resize_img, imgs, res_opt) for imgs in fixfileimages]

        # Keep alive loop to update gui with file conversion info
        for fut in as_completed(futures):
            count += 1
            newprog = count * prog_step
            shwlbl = 'Processing: {}/{} files'.format(count, fcount)
            self.v_prog.set(shwlbl)
            self.v_progbar.set(newprog)
            self.mainwindow.update()

the full code is here

The UI looks like this:

alejandroautalan / pygubu

Weird Threadpool error #260