+ xo-pyunit

pkgs/xo-pyunit.nix

@@ -0,0 +1,39 @@
+{
+  # nixpkgs dependencies
+  stdenv, cmake, catch2, # ... other deps here
+
+  # xo dependencies
+  xo-cmake, #xo-refcnt,
+  xo-pyutil, #xo-reflect,
+  xo-unit,
+
+  # args
+
+  #   attrset for fetching source code.
+  #    { type, owner, repo, ref }
+  #
+  #   e.g. type="github", owner="rconybea", repo="cmake-examples", ref="ex1b"
+  #
+  #   see [[../flake.nix]]
+  #
+  #cmake-examples-ex1-path
+
+  # someconfigurationoption ? false
+} :
+
+stdenv.mkDerivation (finalattrs:
+  {
+    name = "xo-pyunit";
+    version = "1.0";
+
+    src = ../xo-pyunit;
+
+    cmakeFlags = ["-DCMAKE_MODULE_PATH=${xo-cmake}/share/cmake"];
+    doCheck = true;
+    nativeBuildInputs = [ cmake catch2 xo-cmake ];
+    propagatedBuildInputs = [
+      #xo-refcnt
+      xo-pyutil
+      #xo-reflect
+      xo-unit ];
+  })

pkgs/xo-userenv.nix

@@ -70,7 +70,7 @@ buildEnv {
             xo-pyreflect
             xo-ratio
             xo-unit
-#            xo-pyunit
+            xo-pyunit
 #            xo-expression
 #            xo-pyexpression
 #            xo-tokenizer