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/dnspython/default.nix

@@ -0,0 +1,55 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, setuptools-scm
+, pytestCheckHook
+, cacert
+}:
+
+buildPythonPackage rec {
+  pname = "dnspython";
+  version = "2.2.1";
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    extension = "tar.gz";
+    sha256 = "0gk00m8zxjghxnzafhars51k5ahd6wfhf123nrc1j5gzlsj6jx8g";
+  };
+
+  checkInputs = [
+    pytestCheckHook
+  ] ++ lib.optional stdenv.isDarwin [
+    cacert
+  ];
+
+  disabledTests = [
+    # dns.exception.SyntaxError: protocol not found
+    "test_misc_good_WKS_text"
+    # fails if IPv6 isn't available
+    "test_resolver_override"
+
+  # Tests that run inconsistently on darwin systems
+  ] ++ lib.optionals stdenv.isDarwin [
+    # 9 tests fail with: BlockingIOError: [Errno 35] Resource temporarily unavailable
+    "testQueryUDP"
+    # 6 tests fail with: dns.resolver.LifetimeTimeout: The resolution lifetime expired after ...
+    "testResolveCacheHit"
+    "testResolveTCP"
+  ];
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  pythonImportsCheck = [ "dns" ];
+
+  meta = with lib; {
+    description = "A DNS toolkit for Python";
+    homepage = "https://www.dnspython.org";
+    license = with licenses; [ isc ];
+    maintainers = with maintainers; [ gador ];
+  };
+}