Exit Error after valid end programm

[sawt00th]

Python 3.6.5 (x32)
Windows 7
ImageMagic 7.0.8-23 Q16 (32bit) (2019-01-02)
Test Example:

` from wand.image import Image

    img1 = Image(filename=baseline_file)
    img2 = Image(filename=output_file)

    
    img1.normalize()
    img2.normalize()


    comparison, diffrence = img1.compare(img2, metric='root_mean_square')

Result: stdout:Process finished with exit code -1073741819 (0xC0000005)`

And gettng Windows crach error GUI message like:
APPCRASH Application name: python.exe application version :3.6.5150.1013

[emcconville]

Hey! Thanks for posting this. Looks like this was introduced with this patch. It boils down to python's ctypes not having access to CC's preprocessors results.

Luckily, wand 0.5.0 has a temporary workaround for 32bit runtimes. If you can, set the environment variable WAND_REAL_TYPE=c_double. Perhaps even in your script before loading wand modules.

import os
os.environ['WAND_REAL_TYPE'] = 'c_double'
from wand.image import Image

img1 = Image(filename=baseline_file)
img2 = Image(filename=output_file)

img1.normalize()
img2.normalize()

comparison, diffrence = img1.compare(img2, metric='root_mean_square')

[sawt00th]

I was try use your patch, but problem wasn't solved.

[emcconville]

I think I have this solved. If you're up for some testing -- checkout branch issue_389 @ dd3ab5d.

Not really ready to be merged into the release pipeline, but seems to have resolved the issue on win32.

[sawt00th]

Yes. i confirm that.
With your patch, problem was been solved.

[emcconville]

Great! I'll finish up regression testing shortly, and include the revision in the 0.5.1 release. Thanks for testing the branch, it really does help.