uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/pg8000/default.nix

@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, importlib-metadata
+, passlib
+, pythonOlder
+, scramp
+}:
+
+buildPythonPackage rec {
+  pname = "pg8000";
+  version = "1.29.1";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-gLT03ksCVIMreUhRHg3UY0LRwERszU/diStj0C5PvHs=";
+  };
+
+  propagatedBuildInputs = [
+    passlib
+    scramp
+  ] ++ lib.optionals (pythonOlder "3.8") [
+    importlib-metadata
+  ];
+
+  postPatch = ''
+    sed '/^\[metadata\]/a version = ${version}' setup.cfg
+  '';
+
+  # Tests require a running PostgreSQL instance
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "pg8000"
+  ];
+
+  meta = with lib; {
+    description = "Python driver for PostgreSQL";
+    homepage = "https://github.com/tlocke/pg8000";
+    license = with licenses; [ bsd3 ];
+    maintainers = with maintainers; [ domenkozar ];
+    platforms = platforms.unix;
+  };
+}