Background:

between python version 3.7 and 3.11, change was made by python developers in rlcompleter module, which removed exception handling from attr_match method which was previously suppressing some type of exceptions.

Steps to reproduce:

• Open python console;
• Write nav.;
• Press Tab key

Actual behavior:

Different types of exceptions are thrown

Expected behavior:

Autocompletion should work as expected without throwing exceptions

NVDA logs, crash dumps and other attachments:

ERROR - unhandled exception (00:57:28.295) - MainThread (11340):
Traceback (most recent call last):
File "pythonConsole.pyc", line 410, in onInputChar
File "pythonConsole.pyc", line 335, in complete
File "pythonConsole.pyc", line 358, in _getCompletions
File "rlcompleter.pyc", line 92, in complete
File "rlcompleter.pyc", line 189, in attr_matches
File "baseObject.pyc", line 62, in get
File "baseObject.pyc", line 168, in getPropertyViaCache
File "NVDAObjects\IAccessible_init.pyc", line 1052, in _get_labeledBy
TypeError: cannot unpack non-iterable NoneType object

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

alpha-30120,8052b68f

Windows version:

Windows 11 23H2 (AMD64) build 22631.2715

Name and version of other software in use when reproducing the issue:

None

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

Not applicable

Have you tried any other versions of NVDA? If so, please report their behaviors.

Only applicable to python 3.11 version of nvda

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Not applicable