That should almost work, only you are mixing two different paradigms:
python packages are created using buildPythonPackage and take python dependencies in propagatedBuildInputs
projects that need Python with some extra Python modules need python.withPackages … in inputs
So I would replace
with either
pkgs.python3Packages.buildPythonPackage rec {
name = "getBook";
src = ./.;
propagatedBuildInputs = with python3Packages; [
requests
libgenApi
];
};
or
pkgs.stdenv.mkDerivation rec {
name = "getBook";
src = ./.;
buildInputs = [
(python3.withPackages (ps: with ps; [
requests
libgenApi
]))
];
};
depending on whether getBook is one or the other. Possibly buildPythonApplication, if it is application and not a module.
2 Likes
It seems I still get the same error, with both of those variations. Here’s the one I’m using now:
{
description = "Just some python scripts to download books.";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs?ref=nixpkgs-unstable";
utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, utils }: {
devShell = self.defaultPackage;
defaultPackage.x86_64-linux =
with import nixpkgs { system = "x86_64-linux"; };
let
libgenApi = pkgs.python3Packages.buildPythonPackage rec {
pname = "libgen-api";
version = "0.3.0";
doCheck = false;
propagatedBuildInputs = with pkgs.python3Packages; [
setuptools
wheel
beautifulsoup4
];
src = (pkgs.python3Packages.fetchPypi {
inherit pname version;
sha256 = "08fdd5ef7c96480ad11c12d472de21acd32359996f69a5259299b540feba4560";
});};
in
pkgs.python3Packages.buildPythonPackage rec {
name = "getBook";
src = ./.;
propagatedBuildInputs = with pkgs.python3Packages; [
requests
libgenApi
];
};
};
}
Do I need to declare the Pypi package as an input or something?
Looks like you are using wrong hash (of toolz package), so that gets used instead.
If you change the hash to sha256 = "";, you will get complain:
warning: found empty hash, assuming 'sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA='
error: --- Error ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- nix
builder for '/nix/store/7j90gbgzcj6cq3c8b43rlfrq6vqz7614-libgen-api-0.3.0.tar.gz.drv' failed with exit code 1; last 10 log lines:
curl: (22) The requested URL returned error: 404
trying https://pypi.io/packages/source/l/libgen-api/libgen-api-0.3.0.tar.gz
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 122 100 122 0 0 1119 0 --:--:-- --:--:-- --:--:-- 1119
100 280 100 280 0 0 853 0 --:--:-- --:--:-- --:--:-- 1958
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
curl: (22) The requested URL returned error: 404
error: cannot download libgen-api-0.3.0.tar.gz from any mirror
That is because PyPI only has that package as wheel
Looking at
compute = (if format == "wheel" then computeWheelUrl
else if format == "setuptools" then computeSourceUrl
else throw "Unsupported format ${format}");
in compute (builtins.removeAttrs attrs ["format"]);
in makeOverridable( {format ? "setuptools", sha256 ? "", hash ? "", ... } @attrs:
you need to pass it format = "wheel";.
I got it to work by using GitHub instead of PyPi, but now I’m getting another error:
{
description = "Just some python scripts to download books.";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs?ref=nixpkgs-unstable";
utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, utils }: {
devShell = self.defaultPackage;
defaultPackage.x86_64-linux =
with import nixpkgs { system = "x86_64-linux"; };
let
libgenApi = pkgs.python3Packages.buildPythonPackage rec {
pname = "libgen-api";
version = "0.3.0";
doCheck = false;
propagatedBuildInputs = with pkgs.python3Packages; [
setuptools
wheel
beautifulsoup4
];
src = (pkgs.fetchFromGitHub {
owner = "harrison-broadbent";
repo = "libgen-api";
rev = "v0.3.0";
sha256 = "GwomZduHpF/vqT9h0kw9Df6bG0enGPWwDlvdKIS85Ww=";
});};
in
pkgs.python3Packages.buildPythonPackage rec {
pname = "getBook";
version = "0.1.0";
src = ./.;
propagatedBuildInputs = with pkgs.python3Packages; [
requests
libgenApi
];
};
};
}
returns:
error: --- Error --- nix-daemon
builder for '/nix/store/jcpgpifbmjvc8rr8f2dglflad9m534i8-python3.8-libgen-api-0.3.0.drv' failed with exit code 1; last 10 log lines:
warning: file source/setup.py may be generated; SOURCE_DATE_EPOCH may be non-deterministic
patching sources
configuring
no configure script, doing nothing
building
Executing setuptoolsBuildPhase
running bdist_wheel
running build
running build_py
error: package directory 'libgen_api' does not exist
error: --- Error ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- nix
1 dependencies of derivation '/nix/store/x9ymy0xdx8afhl79plncliyc40kc106l-python3.8-getBook-0.1.0.drv' failed to build
Apparently, the project is pretty broken:
It uses API in directory name but api in setup.py
It uses bs4 instead of beautifulsoup4
The following seems to make it build:
pkgs.python3Packages.buildPythonPackage rec {
pname = "libgen-api";
version = "0.3.0";
src = pkgs.fetchFromGitHub {
owner = "harrison-broadbent";
repo = "libgen-api";
rev = "v${version}";
sha256 = "GwomZduHpF/vqT9h0kw9Df6bG0enGPWwDlvdKIS85Ww=";
};
propagatedBuildInputs = with pkgs.python3Packages; [
lxml
requests
beautifulsoup4
];
postPatch = ''
mv libgen_{API,api}
substituteInPlace setup.py --replace "bs4" "beautifulsoup4"
'';
# There are no tests.
doCheck = false;
}
3 Likes