Overriding dependency packages on existing buildPythonApplication

Help
1

I’m looking to take the copier package, and override the dependencies section in order to rebuild the Python Application to include an additional package, specifically jinja2-git so I can use it as an extension.

I can’t quite seem to get the right incantation of overrideAttrs or overridePythonAttrs. Does anyone have suggestions?

I’ve tried this so far

pkgs.copier.overrideAttrs (old: {
    dependencies = old.dependencies ++ [pkgs.python3.withPackages (ps: [ps.jinja2-git])];
}

But all I get is attribute 'dependencies' missing.

2

You meant to use overridePythonAttrs instead, and withPackages is only relevant when you’re trying to build a full environment (python3 wrapped with a set of packages), not just pull an individual module. Just refer to the package directly.

(pkgs.copier.overridePythonAttrs (old: {
    dependencies = old.dependencies ++ [pkgs.python3.pkgs.jinja2-git];
}))