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/emcee/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, numpy
+, pytestCheckHook
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "emcee";
+  version = "3.1.2";
+
+  src = fetchFromGitHub {
+    owner = "dfm";
+    repo = pname;
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-MguhnLLo1zeNuMca8vWpxwysh9YJDD+IzvGQDbScK2M=";
+  };
+
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    numpy
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "emcee" ];
+
+  meta = with lib; {
+    description = "Kick ass affine-invariant ensemble MCMC sampling";
+    homepage = "https://emcee.readthedocs.io/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ ];
+  };
+}