pythonPackages.ColanderAlchemy: mark as broken for colander >1.6.0 (#…

…59975)

ColanderAlchemy doesn't seem to have been updated for colander 1.7.0,
or at least its tests haven't been and we get a single, subtle test
failure around null handling which I don't feel comfortable skipping.
Issue filed upstream stefanofontanelli/ColanderAlchemy#107

users that really need this will have to feed in their own pinned
colander package.

pkgs/development/python-modules/colanderalchemy/default.nix

@@ -30,6 +30,9 @@ buildPythonPackage rec {
     description = "Autogenerate Colander schemas based on SQLAlchemy models";
     homepage = https://github.com/stefanofontanelli/ColanderAlchemy;
     license = licenses.mit;
+    # ColanderAlchemy's tests currently fail with colander >1.6.0
+    # (see https://github.com/stefanofontanelli/ColanderAlchemy/issues/107)
+    broken = versionOlder "1.6.0" colander.version;
   };
 
 }