dash 1.2.0 on Python PyPI

dash

#860 Adds a new arg dev_tools_prune_errors to app.run_server and app.enable_dev_tools. Default True, tracebacks only include user code and below. Set it to False for the previous behavior showing all the Dash and Flask parts of the stack.

Fixed problems with Graph components leaking events and being recreated multiple times if declared with no ID #604
Fixed problem with DatePickerRange component about clearable not working #614 and #594

Clean all the binary assets in dash-renderer repo, add tool to build all the required bundles from fresh source code to avoid confusion of the assets and improve the release process. #874

New column.selectable nested prop that displays a selection checkbox or radio button in the column.
New column_selectable prop to choose whether columns can be selected or not, and whether a single or
multiple selections can be in effect at the same time.
New selected_columns prop that contains the list of visible and hidden columns that are currently selected
New derived_viewport_selected_columns that contains the list of visible columns that are currently selected
This prop is read-only. Use selected_columns in callbacks instead.

Fixed problem clearing one column shifting everything to the left and
leaving the last column blank
Add merge_duplicate_headers prop to correct export_format: display behavior.
#549
Fixed renaming of single-row headers in the GUI