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Implement PEP 810 – Explicit lazy imports #142349
Description
Linked PRs
- gh-142349: Implement PEP 810 - Explicit lazy imports #142351
- gh-142349: Fix build errors from PEP 810 #144726
- gh-142349: Fix refcount corruption in lazy import specialization #144733
- gh-142349: Add CODEOWNERS for lazy imports #144840
- gh-142349: Fix ast.unparse for lazy import statements #144893
- gh-142349: Move all lazy-imports-by-hand to use the new lazy keyword #144894
- gh-142349: Add help("lazy") support #149886
- [3.15] gh-142349: Add help("lazy") support (GH-149886) #149889
- gh-142349: Improve sys.lazy_modules docs #152622
- gh-142349: Clarify lazy import filters have positional-only parameters #144856
- [3.15] gh-142349: Clarify lazy import filters have positional-only parameters (GH-144856) #154808
- gh-142349: Clarify that sys.lazy_modules may contain extra items #155547
- [3.15] gh-142349: Clarify that sys.lazy_modules may contain extra items (GH-155547) #156934
- gh-142349: Document LazyImportType.resolve() method #156936
- [3.15] gh-142349: Document LazyImportType.resolve() method (GH-156936) #157296
- gh-142349: Simplify lazy import resolution #158282
- [3.15] gh-142349: Simplify lazy import resolution (GH-158282) #158569
- gh-142349: Update lazy import comments in whatsnew #158651
- [3.15] gh-142349: Update lazy import comments in whatsnew (GH-158651) #158652
- gh-142349: Update lazy imports C API and sys.flags documentation #158966
Activity
pablogsal commented on Dec 6, 2025
The __future__ is now :)
johnslavik commented on Dec 6, 2025
ZeroIntensity commented on Dec 6, 2025
FFY00 commented on Dec 10, 2025
modulefinder will probably need some updating too, or at least documenting it doesn't support PEP 810.
DinoV commented on Dec 10, 2025
I suspect there was a test that already made sure this is working. It looks like this relies upon scanning the byte code, and uses dis._find_imports to do so, and that got fixed here: 0b36549
FFY00 commented on Dec 10, 2025
Ah, great!
gh-142349: Implement PEP 810 - Explicit lazy imports (#142351)
pythongh-142349: Fix build errors from PEP 810
gh-142349: Fix build errors from PEP 810 (#144726)
pythongh-142349: Fix refcount corruption in lazy import specialization
55 remaining items
[3.15] gh-142349: Document `LazyImportType.resolve()` method (GH-156936…
pythongh-142349: Clarify that sys.lazy_modules may contain extra items (
pythongh-142349: Document `LazyImportType.resolve()` method (pythonGH…
pythongh-142349: Document `LazyImportType.resolve()` method (pythonGH…
gh-142349: Simplify lazy import resolution (#158282)
[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569)
gh-142349: Update lazy import comments in whatsnew (#158651)
[3.15] gh-142349: Update lazy import comments in whatsnew (GH-158651) (…
[3.15] pythongh-142349: Simplify lazy import resolution (pythonGH-158282
[3.15] pythongh-142349: Clarify that sys.lazy_modules may contain ext…
[3.15] pythongh-142349: Document `LazyImportType.resolve()` method (p…