plotly 4.3.0 on Python PyPI

[4.3.0] - 2019-11-11

Updated Plotly.js to version 1.51.1. See the
plotly.js CHANGELOG
for more information
Improved propagation of empty templates (#1892)
Update the add_annotations/add_shapes/add_images methods to no longer default to adding objects in paper coordinates. This allows plotly.js to determine the default reference frame based on context (#1888)
Use the default template's background color for displaying color swatches (#1872). Special thanks to @joelostblom for this contribution!
Improved docstrings (#1835, #1837)

Added image trace type (plotly.js#4289, plotly.js#4307, plotly.js#4313, plotly.js#4319)
Added matplotlib-style plotly.express.imshow convenience function to display images and heatmaps (#1855, #1885)
Added matplotlib-style simple_white template (#1864). Special thanks to @joelostblom for this contribution.
Added support for using an externally managed orca server for image export features (#1850). Special thanks to @miriad for this contribution.
Added facet wrapping support to plotly express functions using the new facet_col_wrap argument (#1838)