Devenv python tool (uv) $PATH entry uses relative paths, causing things to break when changing to a subdirectory

[xandaaah]

Describe the bug
The built-in uv + python3 support adds relative paths to $PATH for tools, which breaks when changing to a subdirectory

To reproduce
Create a new devenv with python and uv support enabled, add a package providing tools (Panda3D for example with multify and obj2egg) and then create a subdirectory. Try running a tool provided by the package installed (multify for example.) Now change to the subdirectory and try to run the tool. It won't work.

xanderm@morgancore ~/forse> multify
Usage: multify -[c|r|u|t|x] -f <multifile_name> [options] <subfile_name> ...
xanderm@morgancore ~/forse [1]> cd wrench
xanderm@morgancore ~/f/wrench (master)> multify
error: flake 'flake:nixpkgs' does not provide attribute 'apps.x86_64-linux.multify', 'packages.x86_64-linux.multify', 'legacyPackages.x86_64-linux.multify' or 'multify'
       Did you mean one of justify or multiqc?
xanderm@morgancore ~/f/wrench (master) [127]> cd ..
xanderm@morgancore ~/forse> cd may_4th/
xanderm@morgancore ~/f/may_4th> multify
error: flake 'flake:nixpkgs' does not provide attribute 'apps.x86_64-linux.multify', 'packages.x86_64-linux.multify', 'legacyPackages.x86_64-linux.multify' or 'multify'
       Did you mean one of justify or multiqc?
xanderm@morgancore ~/f/may_4th [127]> cd ..
xanderm@morgancore ~/f/may_4th [1]> echo $PATH | grep devenv
/nix/store/k2jfczwb32bjpglrzinylpb4mpdabrqr-python3-3.12.7-env/bin /nix/store/w7cs06nn9vvk8a59nv48y4biv9zzv43x-uv-0.4.30/bin /nix/store/zv1kaq7f1q20x62kbjv6pfjygw5jmwl6-python3-3.12.7/bin /nix/store/1zgzrsbq3b0f06k76pha0r8hmfwvjvc0-git-2.47.0/bin /nix/store/4isn1fcxvlnw54yfknm23lh73b45krks-libcap-2.70/bin /nix/store/16h31npnbgpkhxp1041dsifiklbw4mpr-pkg-config-wrapper-0.29.2/bin /nix/store/9q63d382x7k2h6cc2pfsb39ar3n6f9wg-patchelf-0.15.0/bin /nix/store/4apajimszc47rxwcpvc3g3rj2icinl71-gcc-wrapper-13.3.0/bin /nix/store/4krab2h0hd4wvxxmscxrw21pl77j4i7j-gcc-13.3.0/bin /nix/store/zw5haplzbwjgbp3yykhm6iprkpfppzxb-glibc-2.40-36-bin/bin /nix/store/b1wvkjx96i3s7wblz38ya0zr8i93zbc5-coreutils-9.5/bin /nix/store/x9as7x6f7cdgcskvvn3yp02m662krr7y-binutils-wrapper-2.43.1/bin /nix/store/bwkb907myixfzzykp21m9iczkhrq5pfy-binutils-2.43.1/bin /nix/store/b1wvkjx96i3s7wblz38ya0zr8i93zbc5-coreutils-9.5/bin /nix/store/w8pnfazxqwmrqmwkb5zrz1bifsd8abxl-findutils-4.10.0/bin /nix/store/cxwsmlr3xh1ml4r0kgdjrknw7504b9f8-diffutils-3.10/bin /nix/store/vmby25zqxnx94awvj0k7zn0rsd0zyrwg-gnused-4.9/bin /nix/store/85amyk92rg19l4fy0qmy7wr4jmq8p5z0-gnugrep-3.11/bin /nix/store/nnin69nrnrrmnv2scbwyfkgh1rf51gh1-gawk-5.3.1/bin /nix/store/zhaypw0znkjnymg0rk1599zn21rr0l50-gnutar-1.35/bin /nix/store/a7pimibppfw2m3ryijnwwzx76i780bw2-gzip-1.13/bin /nix/store/vqjygx23hkim1kpidik5xcs9whayf3sr-bzip2-1.0.8-bin/bin /nix/store/9y5kd90fdbrq3r4yc9mpqn82f93zdgyq-gnumake-4.4.1/bin /nix/store/p6k7xp1lsfmbdd731mlglrdj2d66mr82-bash-5.2p37/bin /nix/store/mdmansf6zkzsnrcf4h3yav5kz93rh03y-patch-2.7.6/bin /nix/store/5180mi672sl6ikiwyhvgnxasz6iqxws0-xz-5.6.3-bin/bin /nix/store/g4lksqp6l8qiab4a0as21s6556xh4gyp-file-5.45/bin /home/xanderm/.vscode/extensions/ms-python.python-2025.2.0-linux-x64/python_files/deactivate/fish ./.devenv/state/venv/bin /nix/store/sbrd3cb3y0v7m1s5g91967lbngnl7rxh-glib-2.82.1-bin/bin /nix/store/95im22i65wnsgnj7lw1vsl5iy62lypv9-kitty-0.37.0/bin /nix/store/9dnll67932lkqjh31nw6k9kim2prah85-imagemagick-7.1.1-40/bin /nix/store/69v6c64pn1ay26207b0cmzi40qpr9q0w-ncurses-6.4.20221231-dev/bin /run/wrappers/bin /home/xanderm/.local/share/flatpak/exports/bin /var/lib/flatpak/exports/bin /home/xanderm/.nix-profile/bin /nix/profile/bin /home/xanderm/.local/state/nix/profile/bin /etc/profiles/per-user/xanderm/bin /nix/var/nix/profiles/default/bin /run/current-system/sw/bin /home/xanderm/.local/bin /home/xanderm/go/bin /nix/store/qlzvmgr8w9prdlyys7irqf86p7bndf5b-binutils-wrapper-2.43.1/bin /nix/store/s9ikyj8vv30dmn36iw3nbsl1dh2az1jz-pciutils-3.13.0/bin /nix/store/b7ixmgw7i326h9w6qmvbmayglj8jakdx-pkgconf-wrapper-2.3.0/bin /home/xanderm/.local/bin /home/xanderm/go/bin /home/xanderm/.vscode/extensions/ms-python.python-2025.2.0-linux-x64/python_files/deactivate/fish ./.devenv/state/venv/bin /nix/store/sbrd3cb3y0v7m1s5g91967lbngnl7rxh-glib-2.82.1-bin/bin /nix/store/95im22i65wnsgnj7lw1vsl5iy62lypv9-kitty-0.37.0/bin /nix/store/9dnll67932lkqjh31nw6k9kim2prah85-imagemagick-7.1.1-40/bin /nix/store/69v6c64pn1ay26207b0cmzi40qpr9q0w-ncurses-6.4.20221231-dev/bin /run/wrappers/bin /home/xanderm/.local/share/flatpak/exports/bin /var/lib/flatpak/exports/bin /home/xanderm/.nix-profile/bin /nix/profile/bin /home/xanderm/.local/state/nix/profile/bin /etc/profiles/per-user/xanderm/bin /nix/var/nix/profiles/default/bin /run/current-system/sw/bin /home/xanderm/.local/bin /home/xanderm/go/bin /nix/store/qlzvmgr8w9prdlyys7irqf86p7bndf5b-binutils-wrapper-2.43.1/bin /nix/store/s9ikyj8vv30dmn36iw3nbsl1dh2az1jz-pciutils-3.13.0/bin /nix/store/b7ixmgw7i326h9w6qmvbmayglj8jakdx-pkgconf-wrapper-2.3.0/bin /home/xanderm/.local/bin /home/xanderm/go/bin /nix/store/sbrd3cb3y0v7m1s5g91967lbngnl7rxh-glib-2.82.1-bin/bin /nix/store/95im22i65wnsgnj7lw1vsl5iy62lypv9-kitty-0.37.0/bin /nix/store/9dnll67932lkqjh31nw6k9kim2prah85-imagemagick-7.1.1-40/bin /nix/store/69v6c64pn1ay26207b0cmzi40qpr9q0w-ncurses-6.4.20221231-dev/bin /run/wrappers/bin /home/xanderm/.local/share/flatpak/exports/bin /var/lib/flatpak/exports/bin /home/xanderm/.nix-profile/bin /nix/profile/bin /home/xanderm/.local/state/nix/profile/bin /etc/profiles/per-user/xanderm/bin /nix/var/nix/profiles/default/bin /run/current-system/sw/bin /home/xanderm/.local/bin /home/xanderm/go/bin /nix/store/qlzvmgr8w9prdlyys7irqf86p7bndf5b-binutils-wrapper-2.43.1/bin /nix/store/s9ikyj8vv30dmn36iw3nbsl1dh2az1jz-pciutils-3.13.0/bin /nix/store/b7ixmgw7i326h9w6qmvbmayglj8jakdx-pkgconf-wrapper-2.3.0/bin /home/xanderm/.local/bin /home/xanderm/go/bin /home/xanderm/.local/bin /home/xanderm/go/bin

As you can see above, ./.devenv/state/venv/bin is added to the PATH, instead of an absolute path.

Version

xanderm@morgancore ~/forse> devenv version
devenv 1.3.1 (x86_64-linux)

I'm using the version from nixpkgs. I'd be happy to send over my configs if that's needed.

[domenkozar]

That's an interesting one, I think the $PATH is added by bin/activate. IIRC there's a flag to venv to use absolute paths.