final: prev:

{

  # disable pyopenssl-dependency on cloudscraper since it is broken on aarch64
  python3 = prev.python3.override {
    packageOverrides = python3-final: python3-prev: {
      cloudscraper = python3-prev.cloudscraper.override {
        requests-toolbelt = (python3-prev.requests-toolbelt.override {
          pyopenssl = null;
        }).overridePythonAttrs (old: {
          doCheck = false;
        });
      };
    };
  };

}