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/py-cid/default.nix

@@ -0,0 +1,54 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, pytestCheckHook
+, base58
+, py-multibase
+, py-multicodec
+, morphys
+, py-multihash
+, hypothesis
+}:
+
+buildPythonPackage rec {
+  pname = "py-cid";
+  version = "0.3.0";
+  disabled = pythonOlder "3.5";
+
+  src = fetchFromGitHub {
+    owner = "ipld";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-aN7ee25ghKKa90+FoMDCdGauToePc5AzDLV3tONvh4U=";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "base58>=1.0.2,<2.0" "base58>=1.0.2" \
+      --replace "py-multihash>=0.2.0,<1.0.0" "py-multihash>=0.2.0" \
+      --replace "'pytest-runner'," ""
+  '';
+
+  propagatedBuildInputs = [
+    base58
+    py-multibase
+    py-multicodec
+    morphys
+    py-multihash
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    hypothesis
+  ];
+
+  pythonImportsCheck = [ "cid" ];
+
+  meta = with lib; {
+    description = "Self-describing content-addressed identifiers for distributed systems implementation in Python";
+    homepage = "https://github.com/ipld/py-cid";
+    license = licenses.mit;
+    maintainers = with maintainers; [ Luflosi ];
+  };
+}