Get ava.py running with nixified builds

I had to redo some of my python overrides and crib the bitsandbytes.nix
from upstream.

Ava is failing because:

    ValueError: Tokenizer class LlamaTokenizer does not exist or is not
    currently imported.

I think this means I need to update my nixpkgs pin, so I'm gonna
snapshot my work in git, do the update, and that might obviate the local
bitsandbytes.nix anyway.

1 files changed, 32 insertions, 0 deletions

diff --git a/Biz/Bild/Deps/lion-pytorch.nix b/Biz/Bild/Deps/lion-pytorch.nix
new file mode 100644
index 0000000..e23011a
--- /dev/null
+++ b/Biz/Bild/Deps/lion-pytorch.nix
@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchFromGitHub
+, torch
+}:
+
+buildPythonPackage rec {
+  pname = "lion-pytorch";
+  version = "0.1.2";
+  format = "setuptools";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "lucidrains";
+    repo = "lion-pytorch";
+    rev = "refs/tags/${version}";
+    hash = "sha256-9hdpRJvCpv3PeC7f0IXpHt6i+e6LiT0QUl5jeDGelQE=";
+  };
+
+  propagatedBuildInputs = [ torch ];
+
+  pythonImportsCheck = [ "lion_pytorch" ];
+  doCheck = false;  # no tests currently
+
+  meta = with lib; {
+    description = "Optimizer tuned by Google Brain using genetic algorithms";
+    homepage = "https://github.com/lucidrains/lion-pytorch";
+    license = licenses.mit;
+    maintainers = with maintainers; [ bcdarwin ];
+  };
+}