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/gpy/default.nix

@@ -0,0 +1,53 @@
+{ lib, stdenv
+, buildPythonPackage
+, fetchPypi
+, numpy
+, scipy
+, six
+, paramz
+, matplotlib
+, cython
+, nose
+}:
+
+buildPythonPackage rec {
+  pname = "GPy";
+  version = "1.10.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "a2b793ef8d0ac71739e7ba1c203bc8a5afa191058b42caa617e0e29aa52aa6fb";
+  };
+
+  buildInputs = [ cython ];
+  propagatedBuildInputs = [ numpy scipy six paramz matplotlib ];
+  checkInputs = [ nose ];
+
+  # $ nosetests GPy/testing/*.py
+  # => Ran 483 tests in 112.146s (on 8 cores)
+  # So instead, run shorter set of tests
+  checkPhase = ''
+    nosetests GPy/testing/linalg_test.py
+  '';
+
+  # Rebuild cython-generated .c files since the included
+  # ones were built with an older version of cython that is
+  # incompatible with python3.9
+  preBuild = ''
+    for fn in $(find . -name '*.pyx'); do
+      echo $fn | sed 's/\.\.pyx$/\.c/' | xargs ${cython}/bin/cython -3
+    done
+  '';
+
+  pythonImportsCheck = [
+    "GPy"
+  ];
+
+  meta = with lib; {
+    description = "Gaussian process framework in Python";
+    homepage = "https://sheffieldml.github.io/GPy";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ bcdarwin ];
+    broken = stdenv.isDarwin;  # See inscrutable error message here: https://github.com/NixOS/nixpkgs/pull/107653#issuecomment-751527547
+  };
+}