Use the default version of python3.

This avoids having to compile python3.10 and allows using the
precompiled version instead.

Author: necessarily-equal

flake.nix

@@ -14,15 +14,15 @@
     in {
 
       defaultPackage = lib.mapAttrs (system: pkgs:
-        pkgs.python310.pkgs.buildPythonPackage {
+        pkgs.python3.pkgs.buildPythonPackage {
           name = "sloth";
 
           src = pkgs.lib.cleanSource ./.;
 
           format = "other";
 
           buildInputs = [
-            (pkgs.python310.withPackages (ps: [ ps.pillow ]))
+            (pkgs.python3.withPackages (ps: [ ps.pillow ]))
           ];
 
           installPhase = ''