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Default to uv package manager when launched from uv #5213

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Merged
dmadisetti merged 1 commit into from
Jun 6, 2025
Merged

Default to uv package manager when launched from uv #5213

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5 changes: 5 additions & 0 deletions marimo/_config/packages.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,11 @@
def infer_package_manager() -> PackageManagerKind:
"""Infer the package manager from the current project."""

# `uv run` sets `UV` to the uv executable path
# https://github.com/astral-sh/uv/issues/8775
if os.environ.get("UV") is not None:
return "uv"

try:
# Get the project root by looking for common project files
current_dir = Path.cwd()
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2 changes: 2 additions & 0 deletions tests/_config/test_config_packages.py
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Expand Up @@ -78,6 +78,8 @@ def test_infer_package_manager_from_lockfile(mock_cwd: Path):
({"pixi.toml": ""}, {}, {}, "pixi"),
# Test fallback to pip
({}, {}, {}, "pip"),
# Test fallback to uv when running inside `uv run` / `uvx`
({}, {"UV": "/usr/bin/uv"}, {}, "uv"),
]

if sys.platform != "win32":
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