pybuilder / pybuilder / 32796125867

84%

Build Type

push

github

Committed by web-flow

Commit Message

Add Python 3.15 support, drop pre-3.10 workarounds, update vendorized dependencies [release] (#948)

Releases 0.13.21.

## Python 3.15 support

Python 3.15 removed the legacy `load_module()` fallback from the import
machinery, so meta path loaders must implement the PEP 451
`create_module()`/`exec_module()` protocol. Both `VendorImporter` and
`CoverageImporter` failed at import time without it:

```
AttributeError: 'VendorImporter' object has no attribute 'exec_module'
```

There is a subtlety beyond simply adding the two methods.
`module_from_spec()` unconditionally overwrites `__spec__` on whatever
`create_module()` returns, so returning the vendored module directly
replaces its real spec with the alias spec — which has no origin and a
loader unable to locate resources. That surfaced as a second failure:

```
FileNotFoundError: Can't open orphan path (importlib/resources/_adapters.py:139)
```

when virtualenv looked up its own embedded payload. Both loaders now
stash the real spec in `create_module()` and restore it in
`exec_module()`, preserving the pre-3.15 behaviour exactly.

New regression tests (`extern_tests.py`, `coverage_shim_tests.py`) cover
the alias import, submodule import, spec preservation and resource
lookup. They fail without the fix on 3.10, 3.14 and 3.15.

## Pre-3.10 workaround removal

* `collections.abc` fallback in `utils`
* `types.WrapperDescriptorType` et al. fallback in `remote`
* `multiprocessing.semaphore_tracker` fallback in `remote`
* `importlib_metadata` backport fallback in `pip_common`
* 3.8-only `find_distributions` wrapper in `extern`
* hand-rolled `NodeVisitor` computing `end_lineno` in `vendorize`
* `pybuilder_venv.version >= (3, 3)` gate in `sphinx`
* `py2`/`py3` branching in the scaffolded `setup.py`
* `from __future__ import unicode_literals` in `pep517`
* Python 2 residue in `python_utils`
* version guards in the unit and integration tests

The `datetime.UTC` and `unittest.case._addError` fallbacks are retaine... (continued)

Coverage Stats

1427 of 1868 branches covered (76.39%)

Branch coverage included in aggregate %.

27 of 27 new or added lines in 8 files covered. (100.0%)

23 existing lines in 1 file now uncovered.

5619 of 6542 relevant lines covered (85.89%)

38.45 hits per line