fix: set UV_PYTHON in .envrc for NixOS direnv users#116
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machshev merged 1 commit intolowRISC:masterfrom Mar 12, 2026
Merged
fix: set UV_PYTHON in .envrc for NixOS direnv users#116machshev merged 1 commit intolowRISC:masterfrom
machshev merged 1 commit intolowRISC:masterfrom
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On NixOS, uv resolves the Python interpreter via PATH even when VIRTUAL_ENV is set, falling back to the immutable Nix store Python which rejects writes. Setting UV_PYTHON explicitly in .envrc forces uv to use the venv interpreter for all commands. Signed-off-by: James McCorrie <james.mccorrie@lowrisc.org>
AlexJones0
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Mar 12, 2026
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I don't have a local NixOS setup readily available to test this, but the change seems reasonable to me.
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On NixOS, uv resolves the Python interpreter via PATH even when VIRTUAL_ENV is set, falling back to the immutable Nix store Python which rejects writes. Setting UV_PYTHON explicitly in .envrc forces uv to use the venv interpreter for all commands.