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/pyftpdlib/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, mock
+, psutil
+, pyopenssl
+, pysendfile
+}:
+
+buildPythonPackage rec {
+  version = "1.5.6";
+  pname = "pyftpdlib";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0pnv2byzmzg84q5nmmhn1xafvfil85qa5y52bj455br93zc5b9px";
+  };
+
+  checkInputs = [ mock psutil ];
+  propagatedBuildInputs = [ pyopenssl pysendfile ];
+
+  # impure filesystem-related tests cause timeouts
+  # on Hydra: https://hydra.nixos.org/build/84374861
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://github.com/giampaolo/pyftpdlib/";
+    description = "Very fast asynchronous FTP server library";
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}