Segmentation fault debugging aggdraw.Pen

Using aggdraw 1.3.10 in arch linux with cpython 3.7, I get a segmentation fault every time my debugger tries to inspect an aggdraw.Pen object. I tried it debugging with pudb3, with vscode python extension and with pycharm. Here's a minimal code:

from PIL import Image
import aggdraw


def main():
    image = create_image()
    image.show()


def create_image():
    image = Image.new('RGBA', (1024, 1024))
    draw = aggdraw.Draw(image)
    pen = aggdraw.Pen('red', 20)
    draw.line((0, 0, 100, 100), pen)
    draw.flush()
    return image


if __name__ == '__main__':
    main()

Put a breakpoint in the line draw.line((0, 0, 100, 100), pen) and try to inspect pen in your debugger to see if you can reproduce it.

I checked some issues here, and found #22 that also mentions segmentation faults related to Pen, but it seems to be a different issue, and already solved.

And less important, but just to mention it, I don't really want to inspect this object. It's just that debuggers usually show all local variables when you break, so every time I put a breakpoint with a local Pen object, my session crashes and this is the real problem

Start by running the minimal example with aggdraw 1.3.10 on Arch Linux and CPython 3.7, then reproduce the crash by inspecting pen at the draw.line((0, 0, 100, 100), pen) breakpoint in the listed debuggers. Done means debugger inspection no longer causes a segmentation fault.