10:23 <arigato> Julian (for the logs): debugging your problem, I think it's related to using a custom equality for dictionary hashing. More precisely, the crash occurs when the rtyper is trying to build a call to eq() with two arguments that are Name objects but should be _Item objects (or maybe vice-versa)

10:25 <arigato> my current theory would be that you're making somewhere a custom-equality dictionary of _Item objects, but with no eq() in the base class, just two eq()'s in two subclasses

10:25 <arigato> this cannot work correctly because these eq() methods will be called with two arguments typed as _Item

10:32 <arigato> ah, I think the issue is that you're making "r_dict(Name.eq, Name.hash)", which is OK so far, but the Name.eq method is "moved" to the base class _Item because at some other place you call xx.eq() where xx is typed as an _Item

10:38 <arigato> https://baroquesoftware.com/arigo/rpylean.diff (use "view as source")

11:22 <nimaje> why does that webserver serve that diff as text/html instead of text/plain?

19:38 <arigato> yeah, Im not sure

19:39 <arigato> the point was to make that diff available quickly without worrying about pastebins or github fork/PRs

19:40 <arigato> I promise to look more into both if I make that kind of contribution more regularly in the future