does PerspectiveWidget support PerspectiveTableProxy for remote streaming data?

[phc27x]

Hi,

I'm trying to follow the instructions https://perspective.finos.org/docs/md/python.html about getting python working with perspective.

It says that PerspectiveWidget has same api as perspective-viewer js. I'm trying to make a PerspectiveWidget instance display data from a tornado websocket stream and it keeps saying i can't use a TableProxy, but then i don't know how to 'attach' the live data to the widget.

Is there any example of streaming data into the jupyter lab widget?

Thanks

P

[timkpaine]

In Jupyter you have have an implicit running tornado server provided by the Jupyter application, so you can interact between front and backend perspective instances directly via the PerspectiveWidget. There are examples provided in the notebooks section of the examples.

If you wanted to e.g. subscribe to a websocket with a tornado client and push data into perspective, you would just want to call widget.update(data_in_correct_format_for_perspective) inside the websocket handler's onmessage callback.