NSIndexSet.alloc().initWithIndex_ segfaults

[Sbte]

Describe the bug

The following code segfaults:

from Foundation import NSIndexSet
s = NSIndexSet.alloc().initWithIndex_(0)

This is used in array_property so using array_property also causes segfaults.

Note that NSIndexSet.indexSetWithIndex_(0) works fine.

Platform information

• Python version
  3.12.6
• How was python installed (python.org, anaconda, homebrew, ...)
  homebrew
• macOS version
  14.7, but also happens on 13.6.6

[rndblnch]

this looks very similar to the old #271

[rndblnch]

the fix for #271 is specific to NSData, it can be found in this commit: bf601d4

[ronaldoussoren]

Thanks.

I'm currently travelling and will look into this when I'm back home.

[ronaldoussoren]

@rndblnch: #271 is relevant, I'm tweaking that workaround to be more general. Thanks for the tip, that made finding a workaround a lot easier.

[rndblnch]

@rndblnch: #271 is relevant, I'm tweaking that workaround to be more general. Thanks for the tip, that made finding a workaround a lot easier.

glad it helped, it's pure chance that I saw this one while reporting something else, and it rang a bell.
after some digging I found the bug I reported 5 years ago …
thanks again for your work.

[Sbte]

That indeed seems to have fixed the issue, also when using array_property. Thanks a lot!