Fix KeyError: 'name' in python/extractor/imp.py on Python 3.14

[akoeplinger]

Follow-up to #20630

The fix didn't fully work since when we raise the ImportError in find_module on L302 we don't pass a named argument into the format string which causes a KeyError:

codeql/python/extractor/imp.py

Line 302 in c4b27d5

raise ImportError(_ERR_MSG.format(name), name=name)

We need to use a format string without named arguments, like Python 3.13 and earlier did.

/cc @tausbn

Here's a stack trace from the original error I hit (this is from a pipeline running inside MSFT 1ES PT):

[2025-11-24 12:01:17] [build-stdout] [ERROR] [6] Failed to extract file D:\a\_work\1\s\eng\common\cross\install-debs.py: 'name'
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\worker.py", line 263, in _extract_loop
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\extractors\super_extractor.py", line 34, in process
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\extractors\py_extractor.py", line 44, in process
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\extractors\py_extractor.py", line 30, in _get_module_and_imports
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\extractors\py_extractor.py", line 30, in <genexpr>
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\python\imports.py", line 147, in parse_imports
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\python\imports.py", line 174, in _parse_imports_no_init
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\python\imports.py", line 136, in _absolute_import
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\python\finder.py", line 336, in find
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmle\python\finder.py", line 258, in find
[2025-11-24 12:01:17] [build-stdout] [TRACEBACK] [6] "semmleFile "D:\a\_work\_temp\codeql3000\distribution\codeql\python\tools\python3src.zip\imp.py", line 302, in find_module

[Copilot]

Pull request overview

This PR fixes a KeyError that occurs in Python 3.14 when the find_module function raises an ImportError. The issue was introduced in a previous fix that used a named format placeholder {name!r} but the code calls .format(name) with a positional argument instead of a keyword argument.

• Changed the format string from '{name!r}' to '{!r}' to accept positional arguments

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[tausbn]

Thank you for the fix! ❤️
I took the liberty of adding a commit that bumps the extractor version and adds a change note.

[akoeplinger]

Sure, thank you :)