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/matrix-client/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+, requests
+, responses
+, urllib3
+}:
+
+buildPythonPackage rec {
+  pname = "matrix_client";
+  version = "0.4.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0mii7ib3bah5ppqs7i8sjv5l0zbl57011908m4l0jbyby90ayy06";
+  };
+
+  propagatedBuildInputs = [
+    requests
+    urllib3
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    responses
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py --replace \
+      "pytest-runner~=5.1" ""
+  '';
+
+  pythonImportsCheck = [ "matrix_client" ];
+
+  meta = with lib; {
+    description = "Python Matrix Client-Server SDK";
+    homepage = "https://github.com/matrix-org/matrix-python-sdk";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ olejorgenb ];
+  };
+}