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[英]Trying to add NixOS non packaged pytest-bdd to a shell.nix environment
[英]How can I add a python package to a shell.nix, if it's not in nixpkgs?
我有一個用於 Python 開發的 shell.nix,如下所示:
with import <nixpkgs> {};
((
python37.withPackages (ps: with ps; [
matplotlib
spacy
pandas
spacy_models.en_core_web_lg
plotly
])).override({ignoreCollisions=true; })).env
它適用於這些包。 問題是,我也想使用colormath ,它似乎不在 nixpkgs 中。 我怎樣才能導入那個包?
我可以用pypi2nix -V python3 -e colormath
生成一個requirements.nix
,我嘗試用這樣的東西導入它:
with import <nixpkgs> {};
let colormath = import ./requirements.nix { inherit pkgs; }
in ((
python37.withPackages (ps: with ps; [
matplotlib
spacy
...
colormath
])).override({ignoreCollisions=true; })).env
編輯: 這是 requirements.nix 輸出的要點。
我還嘗試制作一個 python 包 nix 表達式,就像在 Nixpkgs 中一樣,它似乎構建正常:
{ buildPythonPackage
, fetchPypi
, networkx
, numpy
, lib
, pytest
}:
buildPythonPackage rec {
pname = "colormath";
version = "3.0.0";
src = fetchPypi {
inherit version;
inherit pname;
sha256 = "3d4605af344527da0e4f9f504fad7ddbebda35322c566a6c72e28edb1ff31217";
};
checkInputs = [ pytest ];
checkPhase = ''
pytest
'';
# Tests seem to hang
# doCheck = false;
propagatedBuildInputs = [ networkx numpy ];
meta = {
homepage = "https://github.com/gtaylor/python-colormath";
license = lib.licenses.bsd2;
description = "Color math and conversion library.";
};
}
(我什至為此提出了拉取請求。)但我只是不知道如何將其導入到我的開發環境中。
我還是下班了有沒有一種簡單的方法來組合 nixpkgs 和非 nixpkgs python 模塊?
我確實解決了類似的問題:
with import <nixpkgs> {};
( let
colormath = pkgs.python37Packages.buildPythonPackage rec {
pname = "colormath";
version = "3.0.0";
src = pkgs.python37Packages.fetchPypi{
inherit version;
inherit pname;
sha256 = "05qjycgxp3p2f9n6lmic68sxmsyvgnnlyl4z9w7dl9s56jphaiix";
};
buildInputs = [ pkgs.python37Packages.numpy pkgs.python37Packages.networkx ];
};
in pkgs.python37.buildEnv.override rec {
extraLibs = [
pkgs.python37
pkgs.python37Packages.matplotlib
pkgs.python37Packages.spacy
pkgs.python37Packages.pandas
pkgs.python37Packages.spacy_models.en_core_web_lg
pkgs.python37Packages.plotly
colormath
];
}
).env
可能有改進的余地,但這對我有用。
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