Use rich's default repr for user classes

[sylvorg]

Hello!

Sorry, I'm having trouble explaining exactly what I want, but is there any way for a class not inheriting from, say, a dict, to have the repr of the dict? For example, when pretty printing a dictionary, larger dictionaries are expanded by default, but doing something like self.__repr__ = self.dct.__repr__ doesn't seem work, and the built-in dict type obviously has no __rich_repr__ for me to copy. Is there any way to get the same default expansion for user classes?

Thank you kindly for the help!

[TomJGooding]

I'm not sure I fully understand your question, but you might find the Rich Repr Protocol section helpful in the docs about Pretty Printing.

[sylvorg]

Sorry, copying my original reply to you from below:

I use that regularly, but my question is how to use the built-in formatting, for situations such as the following:

class Test:
    def __init__(self, **kwargs):
        self.kwargs = kwargs
        self.__repr__ = self.kwargs.__repr__

Rich doesn't seem to use the repr for the built-in type. Is there any way to achieve this sort of functionality?

[sylvorg]

I use that regularly, but my question is how to use the built-in formatting, for situations such as the following:

class Test:
    def __init__(self, **kwargs):
        self.kwargs = kwargs
        self.__repr__ = self.kwargs.__repr__

Rich doesn't seem to use the repr for the built-in type. Is there any way to achieve this sort of functionality?

[willmcgugan]

Not as such. The closest you will get is yielding a dict from __rich_repr__. That will wrap the dict like MyDictLike({"foo": "bar"})

[sylvorg]

Ah; I was under the impression you needed to always yield a string. I'll try this out and report back!

[sylvorg]

It works, @willmcgugan! However, is there any way to remove the class name and parentheses?