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/baselines/default.nix

@@ -0,0 +1,64 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytest
+, gym
+, scipy
+, tqdm
+, joblib
+, dill
+, progressbar2
+, cloudpickle
+, click
+, pyzmq
+, tensorflow
+, mpi4py
+}:
+
+buildPythonPackage {
+  pname = "baselines";
+  version = "0.1.6"; # remember to manually adjust the rev
+
+  src = fetchFromGitHub {
+    owner = "openai";
+    repo = "baselines";
+    # Unfortunately releases are not tagged. This commit bumps the version in setup.py
+    rev = "2bca7901f51c88cdef3ca0666c6a87c454a4dbe8";
+    sha256 = "0j2ck7rsrcyny9qbmrw9aqvzfhv70nbign8iva2dsisa2x24gbcl";
+  };
+
+  propagatedBuildInputs = [
+    gym
+    scipy
+    tqdm
+    joblib
+    pyzmq
+    dill
+    progressbar2
+    mpi4py
+    cloudpickle
+    tensorflow
+    click
+  ];
+
+  postPatch = ''
+    # Needed for the atari wrapper, but the gym-atari package is not supported
+    # in nixos anyways. Since opencv-python is not currently packaged, we
+    # disable it.
+    sed -ie '/opencv-python/d' setup.py
+  '';
+
+  # fails to create a daemon, probably because of sandboxing
+  doCheck = false;
+
+  checkInputs = [
+    pytest
+  ];
+
+  meta = with lib; {
+    description = "High-quality implementations of reinforcement learning algorithms";
+    homepage = "https://github.com/openai/baselines";
+    license = licenses.mit;
+    maintainers = with maintainers; [ timokau ];
+  };
+}