python3.9-requests-toolbelt 0.9.1 -> 0.10.1 https://repology.org/metapackage/python3.9-requests-toolbelt/versions attrpath: python39Packages.requests-toolbelt Received ExitFailure 1 when running Raw command: /nix/store/3nqhcyc7vid1npgcd0m7arg5sn325nhz-nix-2.12.0/bin/nix eval -f . "(let pkgs = import ./. {}; in builtins.hasAttr \"updateScript\" pkgs.python39Packages.requests-toolbelt)" Standard error: error: attribute '(let pkgs = import ' in selection path '(let pkgs = import ./. {}; in builtins.hasAttr "updateScript" pkgs.python39Packages.requests-toolbelt)' not found