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/pyicloud/default.nix

@@ -0,0 +1,60 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, certifi
+, click
+, keyring
+, keyrings-alt
+, pytz
+, requests
+, six
+, tzlocal
+, pytest-mock
+, pytestCheckHook
+, future
+}:
+
+buildPythonPackage rec {
+  pname = "pyicloud";
+  version = "1.0.0";
+
+  src = fetchFromGitHub {
+    owner = "picklepete";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-2E1pdHHt8o7CGpdG+u4xy5OyNCueUGVw5CY8oicYd5w=";
+  };
+
+  propagatedBuildInputs = [
+    certifi
+    click
+    future
+    keyring
+    keyrings-alt
+    pytz
+    requests
+    six
+    tzlocal
+  ];
+
+  checkInputs = [
+    pytest-mock
+    pytestCheckHook
+  ];
+
+  postPatch = ''
+    sed -i \
+      -e 's!click>=.*!click!' \
+      -e 's!keyring>=.*!keyring!' \
+      -e 's!keyrings.alt>=.*!keyrings.alt!' \
+      -e 's!tzlocal==.*!tzlocal!' \
+      requirements.txt
+  '';
+
+  meta = with lib; {
+    description = "PyiCloud is a module which allows pythonistas to interact with iCloud webservices";
+    homepage = "https://github.com/picklepete/pyicloud";
+    license = licenses.mit;
+    maintainers = [ maintainers.mic92 ];
+  };
+}