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/pysvg-py3/default.nix

@@ -0,0 +1,33 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "pysvg-py3";
+  version = "0.2.2-post3";
+
+  src = fetchFromGitHub {
+    owner = "alorence";
+    repo = pname;
+    rev = version;
+    sha256 = "1slync0knpcjgl4xpym8w4249iy6vmrwbarpnbjzn9xca8g1h2f0";
+  };
+
+  checkPhase = ''
+    runHook preCheck
+    mkdir testoutput
+    ${python.interpreter} sample/tutorial.py
+    runHook postCheck
+  '';
+
+  pythonImportsCheck = [ "pysvg" ];
+
+  meta = {
+    homepage = "https://github.com/alorence/pysvg-py3";
+    description = "Creating SVG with Python";
+    license = lib.licenses.bsd2;
+    maintainers = with lib.maintainers; [ davidak ];
+  };
+}