Merge staging-next into staging

pkgs/development/interpreters/python/mk-python-derivation.nix

@@ -118,7 +118,7 @@ let
 
     optionalLocation = let
         pos = builtins.unsafeGetAttrPos (if attrs ? "pname" then "pname" else "name") attrs;
-      in if pos == null then "" else " at ${pos.file}:${toString pos.line}:${toString pos.column}";
+      in lib.optionalString (pos != null) " at ${pos.file}:${toString pos.line}:${toString pos.column}";
 
     leftPadName = name: against: let
         len = lib.max (lib.stringLength name) (lib.stringLength against);

pkgs/development/interpreters/python/wrapper.nix

@@ -42,7 +42,7 @@ let
             if [ -f "$prg" ]; then
               rm -f "$out/bin/$prg"
               if [ -x "$prg" ]; then
-                makeWrapper "$path/bin/$prg" "$out/bin/$prg" --set NIX_PYTHONPREFIX "$out" --set NIX_PYTHONEXECUTABLE ${pythonExecutable} --set NIX_PYTHONPATH ${pythonPath} ${if permitUserSite then "" else ''--set PYTHONNOUSERSITE "true"''} ${lib.concatStringsSep " " makeWrapperArgs}
+                makeWrapper "$path/bin/$prg" "$out/bin/$prg" --set NIX_PYTHONPREFIX "$out" --set NIX_PYTHONEXECUTABLE ${pythonExecutable} --set NIX_PYTHONPATH ${pythonPath} ${lib.optionalString (!permitUserSite) ''--set PYTHONNOUSERSITE "true"''} ${lib.concatStringsSep " " makeWrapperArgs}
               fi
             fi
           done