v4.4.0

[4.4.0] - 2019-12-10

Added

• Extended the plotly.express functional API with 7 new functions: px.pie,
  px.sunburst, px.treemap, px.funnel, and px.funnel_area (#1909) px.density_mapbox and
  px.choropleth_mapbox #1937.
• plotly.express mapbox functions in plotly.express have new arguments center and mapbox_style #1937.
• plotly.express polar plots (scatter_polar, line_polar, bar_polar) now
  have a range_theta keyword argument for representing only an angular
  section #1969.
• All continuous colorscales now accept a _r suffix that reverses their direction #1933
• Docstrings of plotly.py are now doctested #1921.

Updated

• Updated Plotly.js to version 1.51.2. See the
  plotly.js CHANGELOG
  for more information
• The tutorials of the plotly.py documentation are
  now in the main plotly.py Github repository. Contributions in order to improve or extend the documentation are very welcome!
• plotly.express generated plots no longer have a default height of 600 pixels, instead they inherit the default height of regular figures #1990. To restore the old behavior, set px.defaults.height=600 once per session, or set the height keyword arguement to any px.function() to 600.

Fixed

• Fixed a plotly.express input bug when using data frame indices#1934
• Fixed how to display facet labels with plotly express #1966
• Fixed a bug to use correctly the zmin/zmax parameter in px.imshow for single-channel images #1981
• Clipped docstring width for better display in Jupyterlab #1939. Thank you @joelostblom!
• Fixed a bug in the case of external orca server #1915 thank you @dev-dsp!