plotly v5.0.0

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plotly v5.0.0 Release Notes

• ⚡️ Updated/Changed

  ⬆️ Items in this section may be considered backwards-incompatible changes for the purposes of Semantic Versioning but we expect the vast majority of users to be able to upgrade to version 5.0 without encountering any issues.

  • ⬇️ Dropped support for Python older than 3.6 #3160
  • ⚡️ Updated Plotly.js to from version 1.58.4 to version 2.1.0. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
    • dropped support for IE9 and IE10
    • dropped support for long-deprecated graph_objects like area traces and scatter.(t|r) and layout.(radial|angular)axis attributes
    • modebar no longer has hovermode or spikeline buttons by default (can be added back with fig.update_layout(modebar_add=["v1hovermode", "toggleSpikeLines"]))
    • "Aa" text no longer appears on legend items unless mode="text"
    • In bar traces, textposition now defaults to "auto"
    • Font size for legend and colorbar titles now matches axis title font size (slightly bigger)
    • deprecated heatmapgl, pointcloud traces as well as all transform attributes
  • 📦 Combined plotlywidget into jupyterlab-plotly and packaged them as a federated extension #3142 with massive thanks to @fcollonval for the contribution
    • In addition to this change, large Plotly.js bundles are now lazily loaded on-demand by JupyterLab
  • 0️⃣ Plotly.js CDN url will now be versioned by default for HTML exports using include_plotlyjs='cdn' and for "connected" renderers. #2961 with thanks to @adehad for the contribution
  • 0️⃣ Recommending Kaleido by default over Orca #3094
  • Replaced retrying dependency with tenacity #2911 with thanks to @jmsmdy for the contribution
  • Plotly Express now always takes into account every value in category_orders when computing discrete mappings (color, symbol, line-dash, pattern-shapes) as well as facets, even those values which are absent in the data #3247

  ➕ Added

  • ➕ Additions due to bumping Plotly.js from 1.58.4 to 2.1.0 (see [changelog]((https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#210----2021-06-18))):
    • New icicle trace type, with thanks to @Kully and @mtwichan of Zyphr for their contribution!
    • New marker.pattern options for bar-like trace types with thanks to @s417-lama for the contribution!
    • New legendrank attribute to control rank of traces within legends
  • 👍 Plotly Express' px.bar(), px.histogram() and px.bar_polar() now support the pattern_shape argument #3252
  • 🆕 New Plotly Express px.icicle() function, with thanks to @Kully and @mtwichan of Zyphr for their contribution! #3256
  • New functions in plotly.colors: get_colorscale() and sample_colorscale() #3136 and #3186 with thanks to @CarlAndersson for the contributions
  • Faster JSON encoding when orjson is present #2955

  🛠 Fixed

  • 🛠 Pandas and Numpy datetime serialization fixes #3022
  • 🛠 Fixed selected points of histograms in FigureWidget #2771 with thanks to @meffmadd for the contribution
  • Static image export now honors layout.(width|height)#3240
  • Improvements to "matplotlylib" conversion utility in plotly.tools.mpl_to_plotly() with thanks to @fdion #3143

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