Release 4.3.0 (#1894)

* Bump plotly.js to 1.51.1 in jupyterlab-plotly extension
* Update CHANGELOG for 4.3.0
* Bump plotlywidget and jupyterlab-plotly versions to 1.3.0
* Update versions in README

Author: jonmmease

CHANGELOG.md

@@ -2,6 +2,24 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [4.3.0] - 2019-11-11
+
+### Updated
+ - Updated Plotly.js to version 1.51.1. See the
+ [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#1511----2019-11-04)
+ for more information
+ - Improved propagation of empty templates ([#1892](https://github.com/plotly/plotly.py/pull/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](https://github.com/plotly/plotly.py/pull/1888))
+ - Use the default template's background color for displaying color swatches ([#1872](https://github.com/plotly/plotly.py/pull/1872)). Special thanks to [@joelostblom](https://github.com/joelostblom) for this contribution!
+ - Improved docstrings ([#1835](https://github.com/plotly/plotly.py/pull/1835), [#1837](https://github.com/plotly/plotly.py/pull/1837))
+ 
+### Added
+ - Added image trace type ([plotly.js#4289](https://github.com/plotly/plotly.js/pull/4289), [plotly.js#4307](https://github.com/plotly/plotly.js/pull/4307), [plotly.js#4313](https://github.com/plotly/plotly.js/pull/4313), [plotly.js#4319](https://github.com/plotly/plotly.js/pull/4319))
+ - Added matplotlib-style `plotly.express.imshow` convenience function to display images and heatmaps ([#1855](https://github.com/plotly/plotly.py/pull/1855), [#1885](https://github.com/plotly/plotly.py/pull/1885))
+ - Added matplotlib-style `simple_white` template ([#1864](https://github.com/plotly/plotly.py/pull/1864)). Special thanks to [@joelostblom](https://github.com/joelostblom) for this contribution.
+ - Added support for using an externally managed orca server for image export features ([#1850](https://github.com/plotly/plotly.py/pull/1850)). Special thanks to [@miriad](https://github.com/miriad) for this contribution.
+ - Added facet wrapping support to plotly express functions using the new `facet_col_wrap` argument ([#1838](https://github.com/plotly/plotly.py/pull/1838))
+
 ## [4.2.1] - 2019-10-18
 ### Fixed
  - Fixed regression in 4.2.0 that caused all figure factories to require that scikit-image be installed ([#1832](https://github.com/plotly/plotly.py/pull/1832))

README.md

@@ -72,12 +72,12 @@ Built on top of [plotly.js](https://github.com/plotly/plotly.js), `plotly.py` is
 
 plotly.py may be installed using pip...
 ```
-pip install plotly==4.2.1
+pip install plotly==4.3.0
 ```
 
 or conda.
 ```
-conda install -c plotly plotly=4.2.1
+conda install -c plotly plotly=4.3.0
 ```
 
 ### Jupyter Notebook Support
@@ -99,7 +99,7 @@ For use in JupyterLab, install the `jupyterlab` and `ipywidgets`
 packages using pip... 
 
 ```
-pip install jupyterlab==1.0 "ipywidgets==7.5"
+pip install jupyterlab==1.2 "ipywidgets==7.5"
 ```
 
 or conda.
@@ -117,13 +117,13 @@ export NODE_OPTIONS=--max-old-space-size=4096
 set NODE_OPTIONS=--max-old-space-size=4096
 
 # Jupyter widgets extension
-jupyter labextension install @jupyter-widgets/jupyterlab-manager@1.0 --no-build
+jupyter labextension install @jupyter-widgets/jupyterlab-manager@1.1 --no-build
 
 # FigureWidget support
-jupyter labextension install plotlywidget@1.2.0 --no-build
+jupyter labextension install plotlywidget@1.3.0 --no-build
 
 # and jupyterlab renderer support
-jupyter labextension install jupyterlab-plotly@1.2.0 --no-build
+jupyter labextension install jupyterlab-plotly@1.3.0 --no-build
 
 # Build extensions (must be done to activate extensions since --no-build is used above)
 jupyter lab build