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/pylev/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "pylev";
+  version = "1.4.0";
+
+  src = fetchFromGitHub {
+    owner = "toastdriven";
+    repo = "pylev";
+    rev = "v${version}";
+    sha256 = "0fgxjdnvnvavnxmxxd0fl5jyr2f31g3a26bwyxcpy56mgpd095c1";
+  };
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest tests
+  '';
+
+  pythonImportsCheck = [ "pylev" ];
+
+  meta = with lib; {
+    description = "Python Levenshtein implementation";
+    homepage = "https://github.com/toastdriven/pylev";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ jakewaksbaum ];
+  };
+}