Quoting Elizaveta Shashkova from EuroPython 2020 chat about how can we improve debug experience for users:

I would like to have a lazy repr evaluation for the objects! Sometimes users have many really large objects, and when debugger is trying to show them in Variables View (=show their string representation) it can takes a lot of time. We do some tricks, but they not always work. It would be really-really cool to have parameter in repr, which defines max number of symbols we want to evaluate during repr for this object.

What do people, would this optional str limit be a good thing? Does anyone has a better idea?