NixOS：如何将 prophet 添加到 Jupyter 环境中？

Question

我正在使用 JupyterWith framework for the definition of declarative and reproducible Jupyter environments on Nix OS. Based on the documentation，我创建了 shell.nix 文件，我在其中定义了所有 python 依赖项。而且效果很好：

let
  jupyter = import (builtins.fetchGit {
    url = https://github.com/tweag/jupyterWith;
    rev = "37cd8caefd951eaee65d9142544aa4bd9dfac54f";
  }) {};

  iPython = jupyter.kernels.iPythonWith {
    name = "python";
    packages = p: with p; [
      pandas
      numpy
      seaborn
      matplotlib
      scikitlearn
      # prophet
    ];
  };

  iHaskell = jupyter.kernels.iHaskellWith {
    extraIHaskellFlags = "--codemirror Haskell";
    name = "haskell";
    packages = p: with p; [ hvega formatting ];
  };

  jupyterEnvironment =
    jupyter.jupyterlabWith {
      kernels = [ iPython iHaskell ];
    };
in
  jupyterEnvironment.env

但是，当我将 prophet 包添加为另一个 python 依赖项时，问题就出现了。之后，当我尝试运行 nix-shell 时，出现以下错误：

jbezdek@kraken:~$ nix-shell ~/shell.nix.jupyter
error: undefined variable 'prophet' at /home/jbezdek/shell.nix.jupyter:15:7
(use '--show-trace' to show detailed location information)

你能帮我看看我做错了什么吗？

Answer 1

据我所知，你没有做错任何事。 prophet 的问题更隐蔽。您可以与 Nix 一起使用的 Python 包不是在 PyPI 上找到的包（通过某种镜像），而是包源本身的 Nix 派生。这意味着要使一个包可以与 Nix 一起使用，需要有人为此编写一个合适的派生。

标准 nixpkgs-unstable 和稳定频道上的所有可用软件包都可以在 search.nixos.org. When you type prophet there, you won't find it under the python3Packages package set, which means that nobody made an effort to write a derivation for it yet. So the best chance there would be to either start writing your own derivation (see the manual) or make a package request on the GitHub repo 上搜索和找到。

NixOS：如何将 prophet 添加到 Jupyter 环境中？

NixOS: How to add prophet to Jupyter environment?

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