anchor.diff:        });
       };
     };
  -
   in
  -
  -with py.pkgs;
   
   buildPythonPackage rec {
     pname = "mailman";
  
positive.code: { lib, python3, fetchPypi, fetchpatch, pythonOlder, postfix, lynx
  }:
  
  let
    py = python3.override {
      packageOverrides = self: super: {
        # https://gitlab.com/mailman/mailman/-/issues/845
        sqlalchemy = super.sqlalchemy.overridePythonAttrs (oldAttrs: rec {
          version = "1.3.24";
          src = oldAttrs.src.override {
  
negative.code:     sha256 = "12mgxs1ndhdjjkydx48b95na9k9h0disfqgrr6wxx7vda6dqvcwz";
    };
  
    propagatedBuildInputs = with pythonOverride.pkgs; [
      aiosmtpd
      alembic
      authheaders
  