diff --git a/doc/languages-frameworks/python.section.md b/doc/languages-frameworks/python.section.md index dcb0ea0600b..b42d2e67bcf 100644 --- a/doc/languages-frameworks/python.section.md +++ b/doc/languages-frameworks/python.section.md @@ -1006,14 +1006,14 @@ folder and not downloaded again. If you need to change a package's attribute(s) from `configuration.nix` you could do: ```nix - nixpkgs.config.packageOverrides = superP: { - pythonPackages = superP.pythonPackages.override { - overrides = self: super: { - bepasty-server = super.bepasty-server.overrideAttrs ( oldAttrs: { - src = pkgs.fetchgit { + nixpkgs.config.packageOverrides = super: { + python = super.python.override { + packageOverrides = python-self: python-super: { + bepasty-server = python-super.bepasty-server.overrideAttrs (oldAttrs: { + src = super.fetchgit { url = "https://github.com/bepasty/bepasty-server"; - sha256 = "9ziqshmsf0rjvdhhca55sm0x8jz76fsf2q4rwh4m6lpcf8wr0nps"; rev = "e2516e8cf4f2afb5185337073607eb9e84a61d2d"; + sha256 = "9ziqshmsf0rjvdhhca55sm0x8jz76fsf2q4rwh4m6lpcf8wr0nps"; }; }); }; @@ -1021,11 +1021,23 @@ If you need to change a package's attribute(s) from `configuration.nix` you coul }; ``` -If you are using the `bepasty-server` package somewhere, for example in `systemPackages` or indirectly from `services.bepasty`, then a `nixos-rebuild switch` will rebuild the system but with the `bepasty-server` package using a different `src` attribute. This way one can modify `python` based software/libraries easily. Using `self` and `super` one can also alter dependencies (`buildInputs`) between the old state (`self`) and new state (`super`). +If you are using the `bepasty-server` package somewhere, for example in `systemPackages` or indirectly from `services.bepasty`, then a `nixos-rebuild switch` will rebuild the system but with the `bepasty-server` package using a different `src` attribute. This way one can modify `python` based software/libraries easily. +Note that `python-super` refers to the old package set and `python-self` +to the new, overridden version. + +To modify only a Python package set instead of a whole Python derivation, use this snippet: + +```nix + myPythonPackages = pythonPackages.override { + overrides = self: super: { + bepasty-server = ...; + }; + } +``` ### How to override a Python package using overlays? -To alter a python package using overlays, you would use the following approach: +Use the following overlay template: ```nix self: super: @@ -1035,8 +1047,8 @@ self: super: bepasty-server = python-super.bepasty-server.overrideAttrs (oldAttrs: { src = self.pkgs.fetchgit { url = "https://github.com/bepasty/bepasty-server"; - sha256 = "9ziqshmsf0rjvdhhca55sm0x8jz76fsf2q4rwh4m6lpcf8wr0nps"; rev = "e2516e8cf4f2afb5185337073607eb9e84a61d2d"; + sha256 = "9ziqshmsf0rjvdhhca55sm0x8jz76fsf2q4rwh4m6lpcf8wr0nps"; }; }); };