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/pecan/default.nix

@@ -0,0 +1,60 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, logutils
+, Mako
+, webtest
+, pythonOlder
+, pytestCheckHook
+, genshi
+, gunicorn
+, jinja2
+, six
+, sqlalchemy
+, virtualenv
+}:
+
+buildPythonPackage rec {
+  pname = "pecan";
+  version = "1.4.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-LL0O7btXR8BM3xjEquTxxunZUPOvcK8lRLB09+16BIA=";
+  };
+
+  propagatedBuildInputs = [
+    logutils
+    Mako
+    webtest
+    six
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    genshi
+    gunicorn
+    jinja2
+    sqlalchemy
+    virtualenv
+  ];
+
+  pytestFlagsArray = [
+    "--pyargs pecan"
+  ];
+
+  pythonImportsCheck = [
+    "pecan"
+  ];
+
+  meta = with lib; {
+    changelog = "https://pecan.readthedocs.io/en/latest/changes.html";
+    description = "WSGI object-dispatching web framework";
+    homepage = "https://www.pecanpy.org/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ applePrincess ];
+  };
+}