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Use CPU-only PyTorch index to speed up dev installation #2857

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adamtheturtle merged 1 commit into from
Feb 18, 2026
Merged

Use CPU-only PyTorch index to speed up dev installation #2857

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17 changes: 17 additions & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,11 @@ optional-dependencies.dev = [
"sphinx-substitution-extensions==2026.1.12",
"sphinxcontrib-spelling==8.0.2",
"sybil==9.3.0",
# Listed explicitly (despite being transitive via vws-python-mock) so that
# [tool.uv.sources] can redirect to the CPU-only PyTorch index.
# See: https://vws-python.github.io/vws-python-mock/installation.html#faster-installation
"torch>=2.5.1",
"torchvision>=0.20.1",
"ty==0.0.17",
"types-requests==2.32.4.20260107",
"vulture==2.14",
Expand Down Expand Up @@ -106,6 +111,11 @@ bdist_wheel.universal = true
# Code to match this is in ``conf.py``.
version_scheme = "post-release"

[tool.uv]
sources.torch = { index = "pytorch-cpu" }
sources.torchvision = { index = "pytorch-cpu" }
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@cursor cursor bot Feb 18, 2026

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PyTorch source redirect breaks macOS dev installation

Medium Severity

The sources.torch and sources.torchvision unconditionally redirect resolution to the pytorch-cpu index (download.pytorch.org/whl/cpu), which only hosts Linux and Windows wheels — not macOS. Since uv does not fall back to PyPI when a wheel is missing from an explicit index, dependency resolution will fail for any macOS developer. The project classifies as supporting Operating System :: POSIX (which includes macOS). Adding platform markers (e.g., marker = "sys_platform != 'darwin'") to the source entries would restrict the redirect to platforms where CPU-only wheels exist.

Additional Locations (1)

Fix in Cursor Fix in Web

index = [ { name = "pytorch-cpu", url = "https://download.pytorch.org/whl/cpu", explicit = true } ]

[tool.ruff]
line-length = 79
lint.select = [
Expand Down Expand Up @@ -277,6 +287,13 @@ pep621_dev_dependency_groups = [
"dev",
"release",
]
# torch and torchvision are listed explicitly in dev deps to allow
# [tool.uv.sources] to redirect them to the CPU-only PyTorch index,
# but they are not directly imported in the vws-python source code.
per_rule_ignores.DEP002 = [
"torch",
"torchvision",
]

[tool.pyproject-fmt]
indent = 4
Expand Down