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/web-cache/default.nix

@@ -0,0 +1,25 @@
+{ lib, buildPythonPackage, fetchPypi, isPy3k }:
+
+buildPythonPackage rec {
+  pname = "web-cache";
+  version = "1.1.0";
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit version;
+    pname = "web_cache";
+    sha256 = "1d8f1s3i0s3h1jqvjq6cp639hhbbpxvyq7cf9dwzrvvvr0s0m8fm";
+  };
+
+  # No tests in downloaded archive
+  doCheck = false;
+
+  pythonImportsCheck = [ "web_cache" ];
+
+  meta = with lib; {
+    description = "Simple Python key-value storage backed up by sqlite3 database";
+    homepage = "https://github.com/desbma/web_cache";
+    license = licenses.lgpl2Plus;
+    maintainers = with maintainers; [ fortuneteller2k ];
+  };
+}