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/dremel3dpy/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, async-timeout
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, requests
+, urllib3
+, validators
+, yarl
+}:
+
+buildPythonPackage rec {
+  pname = "dremel3dpy";
+  version = "0.3.4";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-zKbHKdgMx76cYGPvPVSm39si0LfyDA4L1CcKaQzEpCw=";
+  };
+
+  propagatedBuildInputs = [
+    async-timeout
+    requests
+    urllib3
+    validators
+    yarl
+  ];
+
+  postPatch = ''
+    # Ignore the pinning
+    sed -i -e "s/==[0-9.]*//" setup.py
+  '';
+
+  # Module has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "dremel3dpy"
+  ];
+
+  meta = with lib; {
+    description = "Module for interacting with Dremel 3D printers";
+    homepage = "https://github.com/godely/dremel3dpy";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}