René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Version 4 discussion","articleBody":"## Overview\r\nThis is an issue for discussing what we'd like to work towards in a future version 4, mostly focusing on changes that would not be backwards compatible.  Nothing here is set in stone and feedback is welcome.\r\n\r\n### Theming\r\nLets make the defualt theme be `plotly` or `plotly_white` (https://github.com/plotly/plotly.py/pull/1224)\r\n\r\n### Integrate `px`\r\nIntegrate the `px` project for exploratory data analysis directly into plotly.py (https://github.com/plotly/px)\r\n\r\n### Redo subplot support\r\nThere are a bunch of [outstanding issues](https://github.com/plotly/plotly.py/issues?q=is%3Aopen+is%3Aissue+label%3Amake_subplots) with the `make_subplots` function.  The most significant limitation being that it doesn't support non-Cartesian subplot types.\r\n\r\nLast year, plotly.js introduced its own subplot layout system (`layout.grid`) so we could build the new subplot system on top of that (See https://github.com/plotly/plotly.js/issues/3507 ).  Hopefully we could still support the `make_subplots` API, but give most of the work to plotly.js\r\n\r\nI would also like to add support for accessing traces by subplot.  Something like\r\n`figure.get_traces(row=2, col=1)`.  This would allow users to construct an initial figure using `px`, and then easily grab particular traces to customize using `.update` or property assignment syntax. See https://github.com/plotly/plotly.py/issues/1484.\r\n\r\n### Self displaying figures\r\nI would like to allow `go.Figure` to display itself as a plotly.js figure when used in an ipython context.  We have a prototype of this in `px` with `FigurePx`\r\n\r\nhttps://github.com/plotly/px/blob/610910fd5f167de2482b01753db13cd0bd01c171/plotly_express/_px.py#L22-L33\r\n\r\nI would like to extend this a bit so that it's possible to use a global setting to configure how `go.Figure` should display itself.  `FigurePx` is using the `init_notebook_mode`/`iplot` approach, but I'd also like to support a static image display (using orca) that would be suitable for use in QtConsole/Spyder and for PDF export.\r\n\r\nThese changes would not affect `FigureWidget`.  `FigureWidget` will remain a separate class that is distinct from `go.Figure` in that is is a widget subclass and supports updating properties in place.\r\n\r\n### Convert offline html export to `plotly.io` module\r\nReplace the `plotly.offline.plot` function with functions in the `plotly.io` module (https://github.com/plotly/plotly.py/issues/1098)\r\n\r\n### Split off choropleth figure factory into a separate package\r\nSplitting the county choropleth figure factories into a separate package would help a lot with reducing the plotly.py package size.  Then we could add additional shape files to that geo-plotly package to support different geographic regions.\r\n\r\n### Split off `plotly.plotly` chart-studio integration into a separate package\r\nSplit off the functionality in `plotly.plotly` into a separate package called `chart_studio`.  This will make it easier for people to understand that you can use plotly.py totally offline and without an account.  Everything in the `plotly` package would be offline, and the chart_studio integration is in the `chart_studio` package.\r\n\r\nAlong with the change to make figures self-displaying and to move the html output to `plotly.io`, this would mean that users would no longer need to figure out the `online`/`offline` distinction.  The plotly.py package just is offline, and you don't need to say offline anywhere to use it that way.\r\n\r\n### Documentation\r\nIf not before, documentation should be updated to remove use of `iplot` and allow figures to display themselves in \"offline\" mode (https://github.com/plotly/documentation/issues/992)\r\n\r\nAlso, before the v3 to v4 jump we should finish working out how to version the documentation so that the version 3 docs can remain active alongside the version 4 docs.\r\n\r\ncc @nicolaskruchten @jackparmer @chriddyp \r\n\r\n","author":{"url":"https://github.com/jonmmease","@type":"Person","name":"jonmmease"},"datePublished":"2019-02-02T14:42:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/1420/plotly.py/issues/1420"}