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/flask-sqlalchemy/default.nix

@@ -0,0 +1,25 @@
+{ lib, buildPythonPackage, fetchPypi, flask, mock, sqlalchemy, pytest }:
+
+buildPythonPackage rec {
+  pname = "Flask-SQLAlchemy";
+  version = "2.5.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "2bda44b43e7cacb15d4e05ff3cc1f8bc97936cc464623424102bfc2c35e95912";
+  };
+
+  propagatedBuildInputs = [ flask sqlalchemy ];
+  checkInputs = [ mock pytest ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = with lib; {
+    description = "SQLAlchemy extension for Flask";
+    homepage = "http://flask-sqlalchemy.pocoo.org/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ gerschtli ];
+  };
+}