IDA 8.3 and Python 3.12

[TQN]

Has anyone been able to run IDA 8.3 leaked well with Python 3.12?
I have fixed the imp module of old Python to importlib module of Python 3.12.
But IDA 8.3 (and 7.7) both crash with IDAPython plugins that use PyQt5?
Please share the patch/fix.
Thanks and brgds

[sendersu]

it resembles me this old issue.... https://hex-rays.com/blog/ida-7-4-and-python-3-8/

[aijundi]

Install pyqt5 with your version of python "pip install pyqt5". Go to the location of its installation. Copy "sip.***.pyd" to "ida\python\3\PyQt5" and rename it to "sip.pyd"

[TQN]

Thanks @aijundi
Replace IDA's sip.pyd with PyQt5's sip.pyd, IDA still crashes

[aijundi]

did you run idapyswitch and select python 3.12 before?

[sendersu]

@TQN
does it work with older python (eg 3.11)?
what is the specific error you are observing in 3.12?

[chants]

According to:

https://hex-rays.com/products/ida/news/8_3/

IDAPython: added support for Python 3.12

Yet according to:

https://hex-rays.com/products/ida/news/8_4/

BUGFIX: IDAPython: IDAPython would fail to initialize on Python 3.12 release due to missing 'imp' module
BUGFIX: IDAPython: plugins using PyQt5 would crash IDA when using Python 3.12 release build

So it sounds like Python 3.12 debug version is supported in 3.12 only and only in 8.3 not 7.7. 8.4 fixes the issue, would need to custom patch otherwise which would require finding the underlying technical issue in the IDA Python libs which is debatable if it is worth it.

[sendersu]

Python 3.12.0
Release Date: Oct. 2, 2023

IDA 8.3.230608
Release Date: June 8, 2023

means 8.3 used some pre-release 3.12 build?

[chants]

According to:

https://peps.python.org/pep-0693/

3.12 development begins: Sunday, 2022-05-08
3.12.0 alpha 1: Monday, 2022-10-24
3.12.0 alpha 2: Monday, 2022-11-14
3.12.0 alpha 3: Tuesday, 2022-12-06
3.12.0 alpha 4: Tuesday, 2023-01-10
3.12.0 alpha 5: Tuesday, 2023-02-07
3.12.0 alpha 6: Tuesday, 2023-03-07
3.12.0 alpha 7: Tuesday, 2023-04-04
3.12.0 beta 1: Monday, 2023-05-22 (No new features beyond this point.)
3.12.0 beta 2: Tuesday, 2023-06-06

So it was just into beta period at that point. I guess by support they only meant they bumped a requirement version, and maybe tested some beta debug version for confirmation.

[kristamullpass6415]

Originally Posted by TQN

Has anyone been able to run IDA 8.3 leaked well with Python 3.12?
I have fixed the imp module of old Python to importlib module of Python 3.12.
But IDA 8.3 (and 7.7) both crash with IDAPython plugins that use PyQt5?

What are plugins that are crashing? Most are working fine for me. I will try to help.

[TQN]

All plugins which import/uses PyQt5.
For example, test with capa, telnet, lighthouse...

Crash text:
"IDA v8.3.230608 has encountered a problem.
Please send this information and, if possible, steps to reproduce the problem to <support@hex-rays.com>

Exception code: C0000005 Exception Flags: 00000000 Exception address: D39A137D
Parameters: 00000000, FFFFFFFF, 00000000"

From dump file, I debug and found, exception throwed from idapython.dll, extlang remove function.

"Oops! internal error 1442 occurred.
Further work is not possible and IDA will close.
Would you like to create a crash dump for a bug report?"

I will rebuild IDAPython from github repo source for IDA 8.3 and IDA 8.4 free and try test.

My old Python is 3.9.
IDA 77 and 8.3 run well with Python 3.9
I update to 3.12 because many lib/package Python out of support for Python 3.9. For example: ipython, jupyter...

I am thinking: not a bug of IDAPython, but bug occurred from the Qt5 private patched of Hexrays.

[chants]

Full stack trace?