|
2 | 2 | All notable changes to this project will be documented in this file. |
3 | 3 | This project adheres to [Semantic Versioning](http://semver.org/). |
4 | 4 |
|
| 5 | +## [4.10.0] - unreleased |
| 6 | + |
| 7 | + |
| 8 | +## [4.9.1] - unreleased |
| 9 | + |
| 10 | + |
| 11 | +## [4.9.0] - 2020-07-16 |
| 12 | + |
| 13 | +### Added |
| 14 | + |
| 15 | +- Added image export support using [Kaleido](https://github.com/plotly/Kaleido). The image export backend can be configured using the new `engine` argument to `plotly.io.to_image` and `plotly.io.write_image`. The `engine` argument may be set to `"kaleido"`, `"orca"`, or `"auto"`. The default is `engine="auto"`, in which case the Kaleido backend is enabled if the `kaleido` package from PyPI is installed, otherwise Orca is used. ([#2613](https://github.com/plotly/plotly.py/pull/2613)). |
| 16 | +- `plotly.express.timeline()` added as an official alternative to `plotly.figure_factories.create_gantt()` ([#2626](https://github.com/plotly/plotly.py/pull/2626)) |
| 17 | +- `create_hexbin_mapbox()` added to Figure Factories, with thanks to [@RenaudLN](https://github.com/RenaudLN) for the impressive contribution! |
| 18 | +- `facet_row_spacing` and `facet_col_spacing` added to Plotly Express cartesian 2d functions ([#2614](https://github.com/plotly/plotly.py/pull/2614)) |
| 19 | +- `base` added to Plotly Express `bar` and `bar_polar` functions ([#2626](https://github.com/plotly/plotly.py/pull/2626)) |
| 20 | +- `px.NO_COLOR` constant to override wide-form color assignment in Plotly Express ([#2614](https://github.com/plotly/plotly.py/pull/2614)) |
| 21 | + |
| 22 | +### Fixed |
| 23 | + |
| 24 | +- trendline traces are now of type `scattergl` when `render_mode="webgl"` in Plotly Express ([#2614](https://github.com/plotly/plotly.py/pull/2614)) |
| 25 | +- regression from 4.8.1 whereby `"parent"` was not accepted as part of `path` for `px.sunburst()` and `px.treemap()` ([#2640](https://github.com/plotly/plotly.py/pull/2640)) |
| 26 | +- `create_dendrogram()` figure factory now works correctly with `scipy` 1.5.1 ([#2627](https://github.com/plotly/plotly.py/pull/2627)) |
| 27 | + |
| 28 | +### Updated |
| 29 | + |
| 30 | +- Updated Plotly.js to version 1.54.6. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/v1.54.6/CHANGELOG.md) for more information. |
| 31 | +- Added all cartesian-2d Plotly Express functions, plus `imshow`, to Pandas backend with `kind` option ([#2541](https://github.com/plotly/plotly.py/pull/2541)) |
| 32 | +- `plotly.express.imshow` now uses data frame index and columns names and values to populate axis parameters by default ([#2539](https://github.com/plotly/plotly.py/pull/2539)) |
| 33 | +- Javascript extensions are now build using Node 12, and have an updated `package-lock.json` with many fewer security warnings ([#2636](https://github.com/plotly/plotly.py/pull/2636)) |
| 34 | + |
| 35 | + |
| 36 | +## [4.8.2] - 2020-06-26 |
| 37 | + |
| 38 | +### Updated |
| 39 | + |
| 40 | +- Updated Plotly.js to version 1.54.5. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/v1.54.5/CHANGELOG.md) for more information. |
| 41 | +- `add_traces()` now accepts bare `int`-like values for `rows`/`cols` as well as lists thereof ([#2546](https://github.com/plotly/plotly.py/pull/2546)), with thanks to [@MCBoarder289](https://github.com/MCBoarder289) for the contribution! |
| 42 | + |
| 43 | +### Fixed |
| 44 | + |
| 45 | +- `row`/`col` now accept `int`-like values, not strictly `int` values ([#2451](https://github.com/plotly/plotly.py/pull/2451)), with thanks to [@MCBoarder289](https://github.com/MCBoarder289) for the contribution! |
| 46 | +- Fixed special cases with `px.sunburst` and `px.treemap` with `path` input ([#2524](https://github.com/plotly/plotly.py/pull/2524)) |
| 47 | +- Fixed bug in `hover_data` argument of `px` functions, when the column name is changed with labels and `hover_data` is a dictionary setting up a specific format for the hover data ([#2544](https://github.com/plotly/plotly.py/pull/2544)). |
| 48 | +- Made the Plotly Express `trendline` argument more robust and made it work with datetime `x` values ([#2554](https://github.com/plotly/plotly.py/pull/2554)) |
| 49 | +- Fixed bug in `px.sunburst` and `px.treemap`: when the `color` and `values` arguments correspond to the same column, a different aggregation function has to be used for the two arguments ([#2591](https://github.com/plotly/plotly.py/pull/2591)) |
| 50 | +- Plotly Express wide mode now accepts mixed integer and float columns ([#2598](https://github.com/plotly/plotly.py/pull/2598)) |
| 51 | +- Plotly Express `range_(x|y)` should not impact the unlinked range of marginal subplots ([#2600](https://github.com/plotly/plotly.py/pull/2600)) |
| 52 | +- `px.line` now sets `line_group=<variable>` in wide mode by default ([#2599](https://github.com/plotly/plotly.py/pull/2599)) |
| 53 | +- Corrected some regex warnings ([#2577](https://github.com/plotly/plotly.py/pull/2577)), with thanks to [@georgevdd](https://github.com/georgevdd) for the contribution! |
| 54 | + |
| 55 | + |
| 56 | +## [4.8.1] - 2020-05-28 |
| 57 | + |
| 58 | +### Fixed |
| 59 | + |
| 60 | +- Fixed the accidental removal of some functions and submodules from `plotly.colors` and `plotly.express.colors` |
| 61 | + |
| 62 | +## [4.8.0] - 2020-05-26 |
| 63 | + |
| 64 | +### Added |
| 65 | + |
| 66 | +- `plotly` now provides a Plotly Express-backed Pandas-compatible plotting backend, which can be activated via `pandas.options.plotting.backend = "plotly"`. Note that it is not intended to implement every Pandas plotting function, nor is it intended to replicate the behaviour of every argument, although per the changes below, `x` and `y` should behave similarly. ([#2336](https://github.com/plotly/plotly.py/pull/2336)) |
| 67 | +- New datasets have been added to `plotly.express.data`: `stocks`, `experiment`, `medals_wide` and `medals_long`. ([#2336](https://github.com/plotly/plotly.py/pull/2336)) |
| 68 | +- plotly `go.Figure` and `go.FigureWidget` now have a `_repr_html_` and a `_repr_mimebundle_` method, which are [standard hooks for integration in systems based on IPython](https://ipython.readthedocs.io/en/stable/config/integrating.html). In particular, with `_repr_html_` plotly figures can now be used within [sphinx-gallery](https://sphinx-gallery.github.io/stable/index.html) without any scraper. These additions should not change anything to the way plotly figures are displayed in notebook environments, since the `_ipython_display_` method (already present in earlier versions) takes precedence over the new methods. |
| 69 | + |
| 70 | +### Updated |
| 71 | + |
| 72 | +- The behaviour of the `x`, `y`, `orientation`, `histfunc`, `violinmode`, `boxmode` and `stripmode` arguments for 2d-cartesian functions in Plotly Express (i.e. `scatter`, `line`, `area`, `bar`, `histogram`, `violin`, `box`, `strip`, `funnel`, `density_heatmap` and `density_contour`) has been refined ([#2336](https://github.com/plotly/plotly.py/pull/2336)): |
| 73 | + - if `x` or `y` is missing, it is inferred to be the index of `data_frame` if `data_frame` provided, otherwise a stable index of integers starting at 0. In the case of `px.bar`, if the provided value is not continuous, the missing value is treated as a column of 1s named "count", so as to behave more like `px.histogram` and to avoid sizing the resulting bars differently based on their position in the column. Previously, missing values defaulted to integers starting at 0 *per trace* which made it potentially inconsistent or misleading. |
| 74 | + - if `x` (`y`) is missing, `orientation` now defaults to `v` (`h`). Previously it always defaulted to `v` but this is not considered a breaking change, as the cases in which it now defaults to `h` caused unreadable output if set to `v`. |
| 75 | + - if both `x` and `y` are provided and one of them does not contain continuous values, `orientation` defaults to the value perpendicular to that axis. Previously it always defaulted to `v` but this is not considered a breaking change, as the cases in which it now defaults to `h` caused unreadable output if set to `v`. |
| 76 | + - if either `x` or `y` (but not both) may now be provided as a list of column references into `data_frame` or columns of data, in which case the imputed data frame will be treated as "wide" data and `melt()`ed internally before applying the usual mapping rules, with function-specific defaults. |
| 77 | + - if neither `x` nor `y` is provided but `data_frame` is, the data frame will be treated as "wide" with defaults depending on the value of `orientation` (and `orientation` has accordingly been added to `scatter`, `line`, `density_heatmap`, and `density_contour` for this purpose). Previously this would have resulted in an empty figure. |
| 78 | + - if both `x` and `y` are provided to `histogram`, and if `x`, `y` and `z` are provided to `density_heatmap` or `density_contour`, then `histfunc` now defaults to `sum` so as to avoid ignoring the provided data, and to cause `histogram` and `bar` to behave more similarly. |
| 79 | + - `violinmode`, `boxmode` and `stripmode` now default to `overlay` if `x` (`y`) in in `v` (`h`) orientation is also mapped to `color`, to avoid strange spacing issues with the previous default of `group` in all cases. |
| 80 | +- The Plotly Express arguments `color_discrete_map`, `symbol_map` and `line_dash_map` now accept the string `"identity"` which causes the corresponding input data to be used as-is rather than mapped into `color_discrete_sequence`, `symbol_sequence` or `line_dash_sequence`, respectively. ([#2336](https://github.com/plotly/plotly.py/pull/2336)) |
| 81 | +- Plotly Express now accepts `px.Constant` or `px.Range` objects in the place of column references so as to express constant or increasing integer values. ([#2336](https://github.com/plotly/plotly.py/pull/2336)) |
| 82 | + |
| 83 | + |
5 | 84 | ## [4.7.1] - 2020-05-08 |
6 | 85 |
|
7 | 86 | ### Fixed |
|
0 commit comments