87 lines
2.6 KiB
Nix
87 lines
2.6 KiB
Nix
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# The core functionality is provided here using flakes. Legacy support for
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# `nix-shell` is provided by a wrapper in `shell.nix`.
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# TODO Hacking around the Qt problems
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# TODO PyPI package not in nixpkgs
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{
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description = "Python development environment";
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inputs = {
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# Version pinning is managed in flake.lock. Upgrading can be done with
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# something like
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#
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# nix flake lock --update-input nixpkgs
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nixpkgs .url = "github:nixos/nixpkgs/nixos-22.05";
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flake-utils .url = "github:numtide/flake-utils";
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flake-compat = {
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url = "github:edolstra/flake-compat";
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flake = false;
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};
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};
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outputs = { self, nixpkgs, flake-utils, ... }:
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# Option 1: try to support each default system
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flake-utils.lib.eachDefaultSystem # NB Some packages in nixpkgs are not supported on some systems
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# Option 2: try to support selected systems
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# flake-utils.lib.eachSystem ["x86_64-linux" "i686-linux" "aarch64-linux" "x86_64-darwin"]
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(system:
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let
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pkgs = import nixpkgs {
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inherit system;
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# Any overlays you need can go here
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overlays = [ ];
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};
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# ----- A Python interpreter with the packages that interest us -------
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python-with-all-my-packages = (python:
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(python.withPackages (ps: [
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ps.pytest
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ps.fastapi
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])));
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in
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rec {
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#devShell = self.devShells.${ system }.python310; # does not need `rec`
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devShell = devShells.python310;
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devShells =
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builtins.listToAttrs (
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builtins.map
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(
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pythonVersion: {
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name = pythonVersion;
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value = pkgs.mkShell {
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buildInputs = [
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(python-with-all-my-packages pkgs.${ pythonVersion })
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pkgs.just
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pkgs.cowsay
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];
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packages = [
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pkgs.python3Packages.python-lsp-server
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pkgs.lolcat
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pkgs.exa
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];
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shellHook =
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''
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export PS1="${pythonVersion} devshell> "
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alias foo='cowsay Foo'
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alias bar='exa -l | lolcat'
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alias baz='cowsay What is the difference between buildIntputs and packages? | lolcat'
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'';
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};
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}
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) [ "python37" "python38" "python39" "python310" ]
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);
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}
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);
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}
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