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gh-69605: Check for already imported modules in PyREPL module completion #139461

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Merged
ambv merged 24 commits into from
Jan 5, 2026
+107 −3
Merged

gh-69605: Check for already imported modules in PyREPL module completion #139461

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6ed2776
PyREPL module completion: check for already imported modules
loic-simon Sep 30, 2025
48fd43f
Add blurb
loic-simon Sep 30, 2025
7ac428e
Better convey intent
loic-simon Oct 1, 2025
6515e2f
[TEMP] debug tests on windows using modern technology (print statements)
loic-simon Oct 1, 2025
7dbb906
[TEMP] More debugging, where is my module??
loic-simon Oct 2, 2025
ac3065a
[TEMP] More debugging, where is my module?? (bis)
loic-simon Oct 2, 2025
75a33da
[TEMP] Day 57, deep into debugging, I still don't know where is my mo…
loic-simon Oct 2, 2025
ce124b1
[TEMP] Moar logs
loic-simon Oct 2, 2025
ee7047f
Merge branch 'main' into pyrepl-module-completion-check-for-already-i…
loic-simon Oct 3, 2025
3f362cd
[TEMP] Is it a FileFinder cache issue??
loic-simon Oct 3, 2025
ed8ce73
[TEMP] Looks like a cache issue indeed
loic-simon Oct 3, 2025
19c49bb
Tests: clean FileFinder cache
loic-simon Oct 3, 2025
16e44af
Remove all debugging junk
loic-simon Oct 3, 2025
14f6175
Small if refactor
loic-simon Oct 5, 2025
bdd7bdf
Merge branch 'pyrepl-module-completion-check-for-already-imported-mod…
loic-simon Oct 5, 2025
78e4737
Full test coverage for new code
loic-simon Oct 11, 2025
e3f1ddb
Merge branch 'python:main' into pyrepl-module-completion-check-for-al…
loic-simon Oct 11, 2025
2644400
Merge branch 'main' into pyrepl-module-completion-check-for-already-i…
tomasr8 Dec 28, 2025
5fa70cf
Merge branch 'main' into pyrepl-module-completion-check-for-already-i…
loic-simon Jan 1, 2026
d332e14
Check __spec__.has_location + refactor
loic-simon Jan 1, 2026
1a5327c
Rename private helper
loic-simon Jan 1, 2026
d48f243
Simplify implementation
loic-simon Jan 2, 2026
e235e20
Fix find_spec call
loic-simon Jan 2, 2026
f6757fe
Remove unused import
loic-simon Jan 2, 2026
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Small if refactor
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@loic-simon
loic-simon committed Oct 5, 2025
commit 14f6175ad13260c4a53745dcca34e2bb44cd5210
14 changes: 6 additions & 8 deletions Lib/_pyrepl/_module_completer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -114,15 +114,13 @@ def _find_modules(self, path: str, prefix: str) -> list[str]:
# even if a module with the same name would be higher in path
imported_path = (imported_module.__spec__
and imported_module.__spec__.origin)
if imported_path:
if os.path.basename(imported_path) == "__init__.py": # package
imported_path = os.path.dirname(imported_path)
import_location = os.path.dirname(imported_path)
modules = list(pkgutil.iter_modules([import_location]))
else:
# Module already imported but without spec/origin:
# propose no suggestions
if not imported_path:
# Module imported but no spec/origin: propose no suggestions
return []
if os.path.basename(imported_path) == "__init__.py": # package
imported_path = os.path.dirname(imported_path)
import_location = os.path.dirname(imported_path)
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modules = list(pkgutil.iter_modules([import_location]))
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@tomasr8 tomasr8 Dec 30, 2025

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I'm not sure if this is correct, it's going to find submodules but we actually want this to be the top-level modules

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@loic-simon loic-simon Jan 1, 2026 •
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I believe it's OK, because os.path.dirname make us search in the folder containing the module origin, not on the origin itself (that's why we need to do it twice for a package):

>>> import os, pkgutil, typing, concurrent
>>>
>>> typing.__spec__.origin  # single-file module
'<venv>/lib/python3.14/typing.py'
>>> concurrent.__spec__.origin  # package
'<venv>/lib/python3.14/concurrent/__init__.py'
>>>
>>> loc = os.path.dirname(typing.__spec__.origin)  # or do it twice for concurrent
>>> [mod for mod in pkgutil.iter_modules([loc]) if mod.name in ("typing", "concurrent")]
[ModuleInfo(module_finder=FileFinder('<venv>/lib/python3.14'), name='concurrent', ispkg=True), 
ModuleInfo(module_finder=FileFinder('<venv>/lib/python3.14'), name='typing', ispkg=False)]

While refactoring this into a separate function I ended up rewriting the whole thing, it should be more explicit now (and it checks module.__package__ instead of the os.path.basename(imported_path) == "__init__.py" hack)

else:
modules = self.global_cache

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