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/sqlalchemy-continuum/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, flask
+, flask_login
+, flask_sqlalchemy
+, flexmock
+, pytestCheckHook
+, sqlalchemy
+, sqlalchemy-utils
+, sqlalchemy-i18n
+}:
+
+buildPythonPackage rec {
+  pname = "SQLAlchemy-Continuum";
+  version = "1.3.12";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "rlHl59MAQhsicMtZQT9rv1iQrDyVYJlawtyhvFaAM7o=";
+  };
+
+  propagatedBuildInputs = [
+    sqlalchemy
+    sqlalchemy-utils
+  ];
+
+  # indicate tests that we don't have a database server at hand
+  DB = "sqlite";
+
+  checkInputs = [
+    pytestCheckHook
+    sqlalchemy-i18n
+    flask
+    flask_login
+    flask_sqlalchemy
+    flexmock
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/kvesteri/sqlalchemy-continuum/";
+    description = "Versioning and auditing extension for SQLAlchemy";
+    license = licenses.bsd3;
+  };
+}