plotly 5.0.0

v5.0.0 - a new federated Jupyter extension, Icicle charts, and Bar chart patterns

on Python PyPI

See the full release announcement here: https://community.plotly.com/t/introducing-plotly-py-5-0-0-a-new-federated-jupyter-extension-icicle-charts-and-bar-chart-patterns/54039

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
• 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
• 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):
  • 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