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/python-nmap/default.nix

@@ -0,0 +1,44 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nmap
+}:
+
+buildPythonPackage rec {
+  pname = "python-nmap";
+  version = "0.7.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-91r2uR3Y47DDH4adsyFj9iraaGlF5bfCX4S8D3+tO2Q=";
+  };
+
+  propagatedBuildInputs = [
+    nmap
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "universal=3" "universal=1"
+  '';
+
+  # Tests requires sudo and performs scans
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "nmap"
+  ];
+
+  meta = with lib; {
+    description = "Python library which helps in using nmap";
+    longDescription = ''
+      python-nmap is a Python library which helps in using nmap port scanner. It
+      allows to easily manipulate nmap scan results and will be a perfect tool
+      for systems administrators who want to automatize scanning task and reports.
+      It also supports nmap script outputs.
+    '';
+    homepage = "http://xael.org/pages/python-nmap-en.html";
+    license = with licenses; [ gpl3Plus ];
+    maintainers = with maintainers; [ fab ];
+  };
+}