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/pysnow/default.nix

@@ -0,0 +1,72 @@
+{ lib
+, brotli
+, buildPythonPackage
+, fetchFromGitHub
+, fetchpatch
+, httpretty
+, ijson
+, poetry-core
+, python-magic
+, pytz
+, pytestCheckHook
+, requests-oauthlib
+}:
+
+buildPythonPackage rec {
+  pname = "pysnow";
+  version = "0.7.16";
+  format = "pyproject";
+
+
+  src = fetchFromGitHub {
+    owner = "rbw";
+    repo = pname;
+    rev = version;
+    hash = "sha256-nKOPCkS2b3ObmBnk/7FTv4o4vwUX+tOtZI5OQQ4HSTY=";
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    brotli
+    ijson
+    python-magic
+    pytz
+    requests-oauthlib
+  ];
+
+  checkInputs = [
+    httpretty
+    pytestCheckHook
+  ];
+
+  patches = [
+    # Switch to peotry-core, https://github.com/rbw/pysnow/pull/183
+    (fetchpatch {
+      name = "switch-to-poetry-core.patch";
+      url = "https://github.com/rbw/pysnow/commit/f214a203432b329df5317f3a25b2c0d9b55a9029.patch";
+      sha256 = "sha256-ViRR+9WStlaQwyrLGk/tMOUAcEMY+kB61ZEKGMQJ30o=";
+    })
+  ];
+
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace 'ijson = "^2.5.1"' 'ijson = "*"' \
+      --replace 'pytz = "^2019.3"' 'pytz = "*"' \
+      --replace 'oauthlib = "^3.1.0"' 'oauthlib = "*"'
+  '';
+
+  pythonImportsCheck = [
+    "pysnow"
+  ];
+
+  meta = with lib; {
+    description = "ServiceNow HTTP client library written in Python";
+    homepage = "https://github.com/rbw/pysnow";
+    license = licenses.mit;
+    maintainers = with maintainers; [ almac ];
+  };
+
+}