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/livelossplot/default.nix

@@ -0,0 +1,40 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, pytestCheckHook
+, bokeh
+, ipython
+, matplotlib
+, numpy
+, nbconvert
+, nbformat
+}:
+
+buildPythonPackage rec {
+  pname = "livelossplot";
+  version = "0.5.4";
+
+  disabled = pythonOlder "3.6";
+
+  # version number in source is wrong in this release
+  postPatch = ''substituteInPlace ${pname}/version.py --replace "0.5.3" "0.5.4"'';
+
+  src = fetchFromGitHub {
+    owner  = "stared";
+    repo   = pname;
+    rev    = "v${version}";
+    sha256 = "IV6YAidoqVoKvpy+LNNHTPpobiDoGX59bHqJcBtaydk=";
+  };
+
+  propagatedBuildInputs = [ bokeh ipython matplotlib numpy ];
+
+  checkInputs = [ nbconvert nbformat pytestCheckHook ];
+
+  meta = with lib; {
+    description = "Live training loss plot in Jupyter for Keras, PyTorch, and others";
+    homepage = "https://github.com/stared/livelossplot";
+    license = licenses.mit;
+    maintainers = with maintainers; [ bcdarwin ];
+  };
+}