aspect-build/rules_py

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More compatible Bazel rules for running Python tools and building Python projects

Stars: 148
Forks: 98
Open beginner issues: 0
Indexed issues: 43
Avg merge: 1d 11h
Merged PRs (30d): 48

Dominant language: Starlark
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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[FR]: Get rules_py working with the hermetic Linux sandbox Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

aspect-build/rules_py#1521 · Opened Sep 3, 2026
[Bug]: pyi_deps, pyi_srcs not supported by py_library Open

bug

aspect-build/rules_py#1514 · 1 assignee · Opened Sep 1, 2026
fix(uv): 2.x conflict groups silently drop Torch transitive dependencies Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

aspect-build/rules_py#1510 · Opened Aug 31, 2026
[Bug]: _aspect.pth entries anchored two level above the runfiles root when the target lives in an external repo. Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

aspect-build/rules_py#1509 · Opened Aug 30, 2026
feat(uv): let builds declare their execution fleet's platform identity for PEP 517 frontends Open

aspect-build/rules_py#1487 · 1 assignee · Opened Aug 26, 2026
[FR]: A first-party wheel rule that builds with uv's backend Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

aspect-build/rules_py#1480 · Opened Aug 21, 2026
[Bug]: py_layer_tier ignores `root` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 70/100

aspect-build/rules_py#1476 · Opened Aug 20, 2026
py_binary and py_test analyzed rule kinds silently bypass rules_lint Python aspects Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

aspect-build/rules_py#1415 · Opened Aug 11, 2026
WhlInstall prints SyntaxError for non-Python .py template during pyc precompilation Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

aspect-build/rules_py#1412 · Opened Aug 10, 2026
[FR]: Expose a stable venv location for non-launcher processes in py_image_layer images Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

aspect-build/rules_py#1377 · Opened Jul 27, 2026
py_binary direct execution loses declared runtime environment after native launcher migration Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

aspect-build/rules_py#1360 · Opened Jul 21, 2026
rules_python zipapp cannot use a rules_py free-threaded runtime Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

aspect-build/rules_py#1332 · Opened Jul 17, 2026
[Bug]: pep517_native_whl uses compiler_executable, which breaks with modern rules_cc cc_toolchain (no tool_paths) Open

bug

aspect-build/rules_py#1296 · 1 comment · 1 assignee · Opened Jul 14, 2026
[Bug]: avoid downloading foreign whl while running gazelle Open

bug

aspect-build/rules_py#1271 · 3 comments · 1 assignee · Opened Jul 7, 2026
[Bug]: uv cross-module projects can make @hub//pkg resolve to a version from another lockfile Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

aspect-build/rules_py#1093 · 1 reaction · Opened Jun 9, 2026
[FR]: --scie support for PEX binary Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

aspect-build/rules_py#1047 · Opened May 22, 2026
[Bug]: resolution-markers never resolved Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

aspect-build/rules_py#994 · 1 comment · 2 reactions · Opened May 11, 2026
[Bug]: ty [environment] does not work on generated venv for ty IDE extension Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

aspect-build/rules_py#938 · 2 comments · 3 reactions · Opened Apr 16, 2026
[Bug]: py_binary not usable in kubernetes? Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

aspect-build/rules_py#934 · 1 comment · Opened Apr 13, 2026
[Bug]: Venv race condition Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

aspect-build/rules_py#899 · Opened Mar 28, 2026
[Bug]: uv based venv generator creates .venv not usable with uv Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

aspect-build/rules_py#895 · 5 comments · Opened Mar 26, 2026
[Bug]: `build` and `setuptools` being missing produces odd errors Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

aspect-build/rules_py#887 · 1 reaction · Opened Mar 20, 2026
Tech debt: vendored pytest_shard is stale Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

aspect-build/rules_py#869 · Opened Mar 19, 2026
[FR]: Sophisticated sdist_build support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

aspect-build/rules_py#860 · 3 comments · Opened Mar 17, 2026
[Bug]: Vscode ty does not work with venv Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

aspect-build/rules_py#802 · 3 comments · 2 reactions · Opened Feb 25, 2026
[Idea]: Relative paths not runfiles Open

aspect-build/rules_py#710 · 1 comment · 1 assignee · Opened Nov 10, 2025
[feature]: Windows support Open

feature request

aspect-build/rules_py#700 · 4 comments · 1 assignee · Opened Nov 4, 2025
[FR]: Docs for py_venv Open

feature request

aspect-build/rules_py#645 · 1 comment · 1 assignee · Opened Sep 24, 2025
[Bug]: `pip install` no longer works in 1.6.0 venvs Open

aspect-build/rules_py#595 · 4 comments · 1 assignee · Opened Jun 13, 2025
[Bug]: py_image_layer results in multiple shim copies Open

bug tracking issue

aspect-build/rules_py#567 · 3 comments · 1 assignee · Opened May 29, 2025
[FR]: Support for pyi files? Open

feature request

aspect-build/rules_py#558 · 5 comments · 7 reactions · 1 assignee · Opened May 9, 2025
[FR]: More granular `py_image_layer` behavior Open

need: discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

aspect-build/rules_py#555 · 1 comment · 1 reaction · Opened May 1, 2025
[FR]: py_image_layer app binary file and folder permssions Open

blocked feature request

aspect-build/rules_py#540 · 1 comment · 1 reaction · 1 assignee · Opened Mar 20, 2025
[Bug]: Running same binary in container build with `py_image_layer` causes failed imports Open

bug

aspect-build/rules_py#526 · 1 comment · 1 reaction · 1 assignee · Opened Feb 6, 2025
[Bug]: py_image_layer seems to embed the host version of the libraries in cross built container Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

aspect-build/rules_py#523 · 3 comments · Opened Jan 29, 2025
[Bug]: py_pex_binary causes some dependencies to conflict Open

bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

aspect-build/rules_py#495 · Opened Jan 22, 2025
[Bug]: The tests parent directory (`"."`) is added to the PYTHONPATH when using `py_pytest_main` Open

bug need: investigation

aspect-build/rules_py#479 · 6 comments · 1 assignee · Opened Dec 12, 2024
[Bug]: py_pex_binary fails if binary target includes __main__.py Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

aspect-build/rules_py#475 · 3 comments · Opened Dec 11, 2024
[FR]: Ability to revert default args to pytest Open

feature request help wanted

Difficulty 4/5 3-5 days Newbie friendliness 42/100

aspect-build/rules_py#469 · 1 comment · Opened Dec 8, 2024
[FR]: Setting transitive dependencies as `virtual` Open

feature request

Difficulty 5/5 Over a week Newbie friendliness 25/100

aspect-build/rules_py#439 · 1 comment · Opened Nov 16, 2024
[Bug]: `py_pex_binary` fails with `AmbiguousDistributionError` Open

bug feature: pex prioritized

aspect-build/rules_py#408 · 2 comments · 4 reactions · 1 assignee · Opened Oct 7, 2024
[Bug]: `resolutions.from_requirements` installs all packages from requirements instead of using requirements to resolve virtual dependencies Open

bug

aspect-build/rules_py#362 · 3 comments · 1 reaction · 1 assignee · Opened Jul 4, 2024
[FR]: Container image layers per-package Open

feature request

Difficulty 5/5 Over a week Newbie friendliness 30/100

aspect-build/rules_py#244 · 8 comments · 1 reaction · Opened Jan 16, 2024

aspect-build/rules_py

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