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/eth-account/default.nix

@@ -0,0 +1,54 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, bitarray
+, eth-abi
+, eth-keyfile
+, eth-keys
+, eth-rlp
+, eth-utils
+, hexbytes
+, pythonOlder
+, rlp
+}:
+
+buildPythonPackage rec {
+  pname = "eth-account";
+  version = "0.6.1";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "ethereum";
+    repo = "eth-account";
+    rev = "v${version}";
+    sha256 = "sha256-cjQvTKC4lDbKnAvbmnTGHQiJZsZFhXc/+UH5rUdlGxs=";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "bitarray>=1.2.1,<1.3.0" "bitarray>=2.4.0,<3"
+  '';
+
+  propagatedBuildInputs = [
+    bitarray
+    eth-abi
+    eth-keyfile
+    eth-keys
+    eth-rlp
+    eth-utils
+    hexbytes
+    rlp
+  ];
+
+  # require buildinga npm project
+  doCheck = false;
+
+  pythonImportsCheck = [ "eth_account" ];
+
+  meta = with lib; {
+    description = "Account abstraction library for web3.py";
+    homepage = "https://github.com/ethereum/eth-account";
+    license = licenses.mit;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}