fix: fail if superfluous packages are excluded

Library/Homebrew/utils/pypi.rb

@@ -307,6 +307,7 @@ def self.update_python_resources!(formula, version: nil, package_name: nil, extr
     found_packages.sort.each do |package|
       if exclude_packages.include? package
         ohai "Excluding \"#{package}\"" if show_info
+        exclude_packages.delete package
         next
       end
 
@@ -332,6 +333,10 @@ def self.update_python_resources!(formula, version: nil, package_name: nil, extr
       EOS
     end
 
+    unless exclude_packages.empty?
+      odie "Excluded superfluous packages: #{", ".join(exclude_packages)}"
+    end
+
     if print_only
       puts new_resource_blocks.chomp
       return