no way to prevent state_set from removes existing attributes about pyscript HOT 4 CLOSED

Good suggestions- it would be good to have a clean way of providing those features. This is related to issues #11 and #12.

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I just made a commit 712692f that makes state setting preserve the attributes. state.set() can optionally update or replace attributes. I also added state.get_attr() to get a dict of all attributes for a state variable.

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This is released in 0.21.

If you can suggest additional features or changes, please re-open this issue or create a new one.

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@craigbarratt
In my PR I also fancied the idea to have access to the full Stateobject, maybe to access any of the other available properties like last_changedor context.

And I suggested using the statesobjects from HAs template engine. Even though the way I implemented it, was quite ugly, still it lets you iterate over all states or thos from a specific domain and gives access to the full State object.
I liked it, because it works the same way as in templates, making it easier for people to adopt pyscript.

What do you think?

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