Python: Difference between revisions
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=== Libraries === | === Libraries === | ||
According to the [https://nixos.org/nixpkgs/manual/#contributing-guidelines official guidelines] for python new package expressions for | According to the [https://nixos.org/nixpkgs/manual/#contributing-guidelines official guidelines] for python new package expressions for libraries should be placed in <syntaxhighlight lang="bash" inline>pkgs/development/python-modules/<name>/default.nix</syntaxhighlight>. Those expressions are then referenced from <code>pkgs/top-level/python-packages.nix</code> like in this example: | ||
<syntaxhighlight lang="nix"> | <syntaxhighlight lang="nix"> | ||
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=== Applications === | === Applications === | ||
Python | Python applications instead should be referenced directly from <code>pkgs/top-level/all-packages.nix</code>. | ||
The expression should take `pythonPackages` as one of the arguments, which guarantees that packages belong to the same set. | The expression should take `pythonPackages` as one of the arguments, which guarantees that packages belong to the same set. | ||
Revision as of 15:34, 26 February 2018
Contribution guidelines
Libraries
According to the official guidelines for python new package expressions for libraries should be placed in pkgs/development/python-modules/<name>/default.nix. Those expressions are then referenced from pkgs/top-level/python-packages.nix like in this example:
{
aenum = callPackage ../development/python-modules/aenum { };
}
The reasoning behind this is the large size of pkgs/top-level/python-packages.nix. Unfortunately most libraries are still defined in-place in pkgs/top-level/python-packages.nix. If a change to library is necessary or an update is made, it is recommend to move the modified package out of pkgs/top-level/python-packages.nix.
Applications
Python applications instead should be referenced directly from pkgs/top-level/all-packages.nix.
The expression should take `pythonPackages` as one of the arguments, which guarantees that packages belong to the same set.