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/requests-kerberos/default.nix

@@ -0,0 +1,55 @@
+{ lib
+, buildPythonPackage
+, cryptography
+, fetchFromGitHub
+, pykerberos
+, pyspnego
+, pytest-mock
+, pytestCheckHook
+, pythonOlder
+, requests
+}:
+
+buildPythonPackage rec {
+  pname = "requests-kerberos";
+  version = "0.14.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "requests";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-Y9dTzFCgVmSnbnTE0kEfjpEkXDEA+uOqFHLkSC27YGg=";
+  };
+
+  propagatedBuildInputs = [
+    cryptography
+    requests
+    pykerberos
+    pyspnego
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    pytest-mock
+  ];
+
+  # avoid needing to package krb5
+  postPatch = ''
+    substituteInPlace setup.py \
+    --replace "pyspnego[kerberos]" "pyspnego"
+  '';
+
+  pythonImportsCheck = [
+    "requests_kerberos"
+  ];
+
+  meta = with lib; {
+    description = "An authentication handler for using Kerberos with Python Requests";
+    homepage = "https://github.com/requests/requests-kerberos";
+    license = licenses.isc;
+    maintainers = with maintainers; [ catern ];
+  };
+}