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/pykeepass/default.nix

@@ -0,0 +1,42 @@
+{ lib, fetchFromGitHub, buildPythonPackage
+, lxml, pycryptodomex, construct
+, argon2-cffi, python-dateutil, future
+, python
+}:
+
+buildPythonPackage rec {
+  pname   = "pykeepass";
+  version = "4.0.2";
+
+  src = fetchFromGitHub {
+    owner = "libkeepass";
+    repo = "pykeepass";
+    rev = "v${version}";
+    hash = "sha256-q6cBowEki5iJh04Hp1jwbWdteEu3HXtD3tG/TsYDRNI=";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py --replace "==" ">="
+  '';
+
+  propagatedBuildInputs = [
+    lxml pycryptodomex construct
+    argon2-cffi python-dateutil future
+  ];
+
+  propagatedNativeBuildInputs = [ argon2-cffi ];
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest tests.tests
+  '';
+
+  pythonImportsCheck = [ "pykeepass" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/libkeepass/pykeepass";
+    changelog = "https://github.com/libkeepass/pykeepass/blob/${src.rev}/CHANGELOG.rst";
+    description = "Python library to interact with keepass databases (supports KDBX3 and KDBX4)";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [ dotlambda ];
+  };
+}