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/mautrix/default.nix

@@ -0,0 +1,38 @@
+{ lib, buildPythonPackage, fetchPypi, aiohttp, pythonOlder
+, sqlalchemy, ruamel-yaml, CommonMark, lxml, aiosqlite
+}:
+
+buildPythonPackage rec {
+  pname = "mautrix";
+  version = "0.16.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-OpHLh5pCzGooQ5yxAa0+85m/szAafV+l+OfipQcfLtU=";
+  };
+
+  propagatedBuildInputs = [
+    aiohttp
+
+    # defined in optional-requirements.txt
+    sqlalchemy
+    aiosqlite
+    ruamel-yaml
+    CommonMark
+    lxml
+  ];
+
+  disabled = pythonOlder "3.8";
+
+  # no tests available
+  doCheck = false;
+
+  pythonImportsCheck = [ "mautrix" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/tulir/mautrix-python";
+    description = "A Python 3 asyncio Matrix framework.";
+    license = licenses.mpl20;
+    maintainers = with maintainers; [ nyanloutre ma27 sumnerevans ];
+  };
+}