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/mixpanel/default.nix

@@ -0,0 +1,46 @@
+
+{ buildPythonPackage
+, fetchFromGitHub
+, isPy37
+, lib
+
+# Python Dependencies
+, mock
+, pytest
+, six
+}:
+
+buildPythonPackage rec {
+  pname = "mixpanel";
+  version = "4.5.0";
+  disabled = !isPy37;
+
+  src = fetchFromGitHub {
+    owner = "mixpanel";
+    repo = "mixpanel-python";
+    rev = version;
+    sha256 = "1hlc717wcn71i37ngsfb3c605rlyjhsn3v6b5bplq00373r4d39z";
+  };
+
+  propagatedBuildInputs = [
+    six
+  ];
+
+  checkInputs = [
+    mock
+    pytest
+  ];
+
+  checkPhase = ''
+    py.test
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/mixpanel/mixpanel-python";
+    description = "Official Mixpanel Python library";
+    license = licenses.asl20;
+    maintainers = with maintainers; [
+      kamadorueda
+    ];
+  };
+}