anchor.diff:    passthru.tests = {
       standalone = nixosTests.pgadmin4-standalone;
       # regression and function tests of the package itself
  -    package = (import ../../../../nixos/tests/pgadmin4.nix ({ inherit pkgs; buildDeps = buildDeps; pythonEnv = pythonPackages; }));
  +    package = import ../../../../nixos/tests/pgadmin4.nix { inherit pkgs buildDeps; pythonEnv = pythonPackages; };
     };
   
     meta = with lib; {
  
positive.code:   postPatch = ''
      # patching Makefile, so it doesn't try to build sphinx documentation here
      # (will do so later)
      substituteInPlace Makefile --replace 'LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 $(MAKE) -C docs/en_US -f Makefile.sphinx html' "true"
      # fix document which refers a non-existing document and fails
      substituteInPlace docs/en_US/contributions.rst --replace "code_snippets" ""
      patchShebangs .
      # relax dependencies
      substituteInPlace requirements.txt \
        --replace "psycopg2==2.9.*" "psycopg2>=2.9" \
        --replace "cryptography==3.*" "cryptography>=3.0" \
        --replace "requests==2.25.*" "requests>=2.25.0" \
  
negative.code: }:
  
  let
    pname = "pgadmin";
    version = "6.9";
  
  