> http://flask.sagenb.org/home/pub/101/

Thanks, I can see it now. I was also able to call

sage: CatCat
<__main__.CatalanCatalog instance at 0x10d01be60>

on 4.7.2, but the bijections seem to be missing,

sage: CatCat.map('r','o')
ValueError: Can't map objects of type r into objects of type o

and also the graph CatCat._graph didn't have any edges. However, on
4.5.beta6, CatCat wasn't even present anymore.

It would be great if I could get your code running to enhance it with
further objects, and build a similar catalog for Coxeter-Catalan
objects.

btw: I wasn't aware of this way to collects objects and bijections; is
this considered the standard way to catalog objects?

Thanks, Christian

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