Issue 189 - Number formatting

.circleci/config.yml

@@ -142,11 +142,15 @@ jobs:
 
     "node":
         docker:
-            - image: circleci/node:8.11.3
+            - image: circleci/python:3.6.7-node
 
         steps:
             - checkout
 
+            - run:
+                  name: Create virtual env
+                  command: python -m venv || virtualenv venv
+
             - restore_cache:
                 key: deps1-{{ .Branch }}-{{ checksum "package-lock.json" }}-{{ checksum "package.json" }}
 
@@ -159,9 +163,17 @@ jobs:
                 paths:
                     - node_modules
 
+            - run:
+                name: Install requirements
+                command: |
+                    . venv/bin/activate
+                    pip install -r requirements-base.txt --quiet
+
             - run:
                 name: Run eslint
-                command: npm run lint
+                command: |
+                    . venv/bin/activate
+                    npm run lint
                 when: always
 
 

.vscode/settings.json

@@ -1,3 +1,41 @@
 {
-    "tslint.jsEnable": true
+    "tslint.jsEnable": true,
+    "cSpell.allowCompoundWords": true,
+    "cSpell.ignorePaths": [
+        "**/package.json",
+        "**/package-lock.json",
+        "**/node_modules/**",
+        "**/vscode-extension/**",
+        "**/.git/**",
+        ".vscode",
+        "typings"
+    ],
+    "cSpell.ignoreRegExpList": [
+        "'"
+    ],
+    "cSpell.language": "en",
+    "cSpell.diagnosticLevel": "Error",
+    "cSpell.languageSettings": [
+        { "languageId": "*", "dictionaries": ["fonts", "css", "html", "npm", "typescript", "python"]}
+    ],
+    "cSpell.words": [
+        "atto",
+        "deletable",
+        "femto",
+        "giga",
+        "ints",
+        "milli",
+        "nully",
+        "peta",
+        "pico",
+        "plotly",
+        "selectable",
+        "tera",
+        "tooltips",
+        "uneditable",
+        "yocto",
+        "yotta",
+        "zepto",
+        "zetta"
+    ]
 }

CHANGELOG.md

@@ -9,6 +9,17 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [3.5.0] - 2019-02-25
 ### Added
+[#189](https://github.com/plotly/dash-table/issues/189)
+- Added `format` nested prop to columns
+    - Applied to columns with `type=numeric` (more to come)
+    - Uses [d3-format](https://github.com/d3/d3-format) under the hood
+    - `format.locale` for localization configuration
+    - `format.prefix` for SI prefix configuration
+    - `format.specifier` for formatting configuration
+    - `format.separate_4digits` to configure grouping behavior for numbers with 4 digits or less
+    - Python helpers (dash_table.FormatTemplate)
+- Added `locale_format` prop to table (default localization configuration, merged with column.format.locale)
+
 [#342](https://github.com/plotly/dash-core/issues/342)
 - Added `column_type` condition to style `if`; allows applying styles based on the type of the column for props
     - `style_cell_conditional`

dash_table/DataTable.py

@@ -12,6 +12,29 @@ class DataTable(Component):
 active.
 - columns (list; optional): Columns describes various aspects about each individual column.
 `name` and `id` are the only required parameters.
+- locale_format (optional): The localization specific formatting information applied to all columns in the table.
+
+This prop is derived from the [d3.formatLocale](https://github.com/d3/d3-format#formatLocale) data structure specification.
+
+When left unspecified, each individual nested prop will default to a pre-determined value.
+
+  'symbol': (default: ['$', '']) a list of two strings representing the
+  prefix and suffix symbols. Typically used for currency, and implemented using d3's
+  currency format, but you can use this for other symbols such as measurement units.
+  'decimal': (default: '.') the string used for the decimal separator
+  'group': (default: ',') the string used for the groups separator
+  'grouping': (default: [3]) a list of integers representing the grouping pattern
+  'numerals': a list of ten strings used as replacements for numbers 0-9
+  'percent': (default: '%') the string used for the percentage symbol
+  'separate_4digits': (default: True) separate integers with 4-digits or less. locale_format has the following type: dict containing keys 'symbol', 'decimal', 'group', 'grouping', 'numerals', 'percent', 'separate_4digits'.
+Those keys have the following types:
+  - symbol (list; optional)
+  - decimal (string; optional)
+  - group (string; optional)
+  - grouping (list; optional)
+  - numerals (list; optional)
+  - percent (string; optional)
+  - separate_4digits (boolean; optional)
 - content_style (a value equal to: 'fit', 'grow'; optional): `content_style` toggles between a set of CSS styles for
 two common behaviors:
 - `fit`: The table container's width be equal to the width of its content.
@@ -208,7 +231,7 @@ class DataTable(Component):
 in the list. Higher priority (more specific) conditional
 tooltips should be put at the beginning of the list.
 
-The `if` refers to the condtion that needs to be fulfilled
+The `if` refers to the condition that needs to be fulfilled
 in order for the associated tooltip configuration to be
 used. If multiple conditions are defined, all conditions
 must be met for the tooltip to be used by a cell.
@@ -387,12 +410,12 @@ class DataTable(Component):
 Subscribe to [https://github.com/plotly/dash-table/issues/168](https://github.com/plotly/dash-table/issues/168)
 for updates on the dropdown API."""
     @_explicitize_args
-    def __init__(self, active_cell=Component.UNDEFINED, columns=Component.UNDEFINED, content_style=Component.UNDEFINED, css=Component.UNDEFINED, data=Component.UNDEFINED, data_previous=Component.UNDEFINED, data_timestamp=Component.UNDEFINED, editable=Component.UNDEFINED, end_cell=Component.UNDEFINED, id=Component.UNDEFINED, is_focused=Component.UNDEFINED, merge_duplicate_headers=Component.UNDEFINED, n_fixed_columns=Component.UNDEFINED, n_fixed_rows=Component.UNDEFINED, row_deletable=Component.UNDEFINED, row_selectable=Component.UNDEFINED, selected_cells=Component.UNDEFINED, selected_rows=Component.UNDEFINED, start_cell=Component.UNDEFINED, style_as_list_view=Component.UNDEFINED, pagination_mode=Component.UNDEFINED, pagination_settings=Component.UNDEFINED, navigation=Component.UNDEFINED, column_conditional_dropdowns=Component.UNDEFINED, column_static_dropdown=Component.UNDEFINED, column_static_tooltip=Component.UNDEFINED, column_conditional_tooltips=Component.UNDEFINED, tooltips=Component.UNDEFINED, tooltip_delay=Component.UNDEFINED, tooltip_duration=Component.UNDEFINED, filtering=Component.UNDEFINED, filtering_settings=Component.UNDEFINED, filtering_type=Component.UNDEFINED, filtering_types=Component.UNDEFINED, sorting=Component.UNDEFINED, sorting_type=Component.UNDEFINED, sorting_settings=Component.UNDEFINED, sorting_treat_empty_string_as_none=Component.UNDEFINED, style_table=Component.UNDEFINED, style_cell=Component.UNDEFINED, style_data=Component.UNDEFINED, style_filter=Component.UNDEFINED, style_header=Component.UNDEFINED, style_cell_conditional=Component.UNDEFINED, style_data_conditional=Component.UNDEFINED, style_filter_conditional=Component.UNDEFINED, style_header_conditional=Component.UNDEFINED, virtualization=Component.UNDEFINED, derived_viewport_data=Component.UNDEFINED, derived_viewport_indices=Component.UNDEFINED, derived_viewport_selected_rows=Component.UNDEFINED, derived_virtual_data=Component.UNDEFINED, derived_virtual_indices=Component.UNDEFINED, derived_virtual_selected_rows=Component.UNDEFINED, dropdown_properties=Component.UNDEFINED, **kwargs):
-        self._prop_names = ['active_cell', 'columns', 'content_style', 'css', 'data', 'data_previous', 'data_timestamp', 'editable', 'end_cell', 'id', 'is_focused', 'merge_duplicate_headers', 'n_fixed_columns', 'n_fixed_rows', 'row_deletable', 'row_selectable', 'selected_cells', 'selected_rows', 'start_cell', 'style_as_list_view', 'pagination_mode', 'pagination_settings', 'navigation', 'column_conditional_dropdowns', 'column_static_dropdown', 'column_static_tooltip', 'column_conditional_tooltips', 'tooltips', 'tooltip_delay', 'tooltip_duration', 'filtering', 'filtering_settings', 'filtering_type', 'filtering_types', 'sorting', 'sorting_type', 'sorting_settings', 'sorting_treat_empty_string_as_none', 'style_table', 'style_cell', 'style_data', 'style_filter', 'style_header', 'style_cell_conditional', 'style_data_conditional', 'style_filter_conditional', 'style_header_conditional', 'virtualization', 'derived_viewport_data', 'derived_viewport_indices', 'derived_viewport_selected_rows', 'derived_virtual_data', 'derived_virtual_indices', 'derived_virtual_selected_rows', 'dropdown_properties']
+    def __init__(self, active_cell=Component.UNDEFINED, columns=Component.UNDEFINED, locale_format=Component.UNDEFINED, content_style=Component.UNDEFINED, css=Component.UNDEFINED, data=Component.UNDEFINED, data_previous=Component.UNDEFINED, data_timestamp=Component.UNDEFINED, editable=Component.UNDEFINED, end_cell=Component.UNDEFINED, id=Component.UNDEFINED, is_focused=Component.UNDEFINED, merge_duplicate_headers=Component.UNDEFINED, n_fixed_columns=Component.UNDEFINED, n_fixed_rows=Component.UNDEFINED, row_deletable=Component.UNDEFINED, row_selectable=Component.UNDEFINED, selected_cells=Component.UNDEFINED, selected_rows=Component.UNDEFINED, start_cell=Component.UNDEFINED, style_as_list_view=Component.UNDEFINED, pagination_mode=Component.UNDEFINED, pagination_settings=Component.UNDEFINED, navigation=Component.UNDEFINED, column_conditional_dropdowns=Component.UNDEFINED, column_static_dropdown=Component.UNDEFINED, column_static_tooltip=Component.UNDEFINED, column_conditional_tooltips=Component.UNDEFINED, tooltips=Component.UNDEFINED, tooltip_delay=Component.UNDEFINED, tooltip_duration=Component.UNDEFINED, filtering=Component.UNDEFINED, filtering_settings=Component.UNDEFINED, filtering_type=Component.UNDEFINED, filtering_types=Component.UNDEFINED, sorting=Component.UNDEFINED, sorting_type=Component.UNDEFINED, sorting_settings=Component.UNDEFINED, sorting_treat_empty_string_as_none=Component.UNDEFINED, style_table=Component.UNDEFINED, style_cell=Component.UNDEFINED, style_data=Component.UNDEFINED, style_filter=Component.UNDEFINED, style_header=Component.UNDEFINED, style_cell_conditional=Component.UNDEFINED, style_data_conditional=Component.UNDEFINED, style_filter_conditional=Component.UNDEFINED, style_header_conditional=Component.UNDEFINED, virtualization=Component.UNDEFINED, derived_viewport_data=Component.UNDEFINED, derived_viewport_indices=Component.UNDEFINED, derived_viewport_selected_rows=Component.UNDEFINED, derived_virtual_data=Component.UNDEFINED, derived_virtual_indices=Component.UNDEFINED, derived_virtual_selected_rows=Component.UNDEFINED, dropdown_properties=Component.UNDEFINED, **kwargs):
+        self._prop_names = ['active_cell', 'columns', 'locale_format', 'content_style', 'css', 'data', 'data_previous', 'data_timestamp', 'editable', 'end_cell', 'id', 'is_focused', 'merge_duplicate_headers', 'n_fixed_columns', 'n_fixed_rows', 'row_deletable', 'row_selectable', 'selected_cells', 'selected_rows', 'start_cell', 'style_as_list_view', 'pagination_mode', 'pagination_settings', 'navigation', 'column_conditional_dropdowns', 'column_static_dropdown', 'column_static_tooltip', 'column_conditional_tooltips', 'tooltips', 'tooltip_delay', 'tooltip_duration', 'filtering', 'filtering_settings', 'filtering_type', 'filtering_types', 'sorting', 'sorting_type', 'sorting_settings', 'sorting_treat_empty_string_as_none', 'style_table', 'style_cell', 'style_data', 'style_filter', 'style_header', 'style_cell_conditional', 'style_data_conditional', 'style_filter_conditional', 'style_header_conditional', 'virtualization', 'derived_viewport_data', 'derived_viewport_indices', 'derived_viewport_selected_rows', 'derived_virtual_data', 'derived_virtual_indices', 'derived_virtual_selected_rows', 'dropdown_properties']
         self._type = 'DataTable'
         self._namespace = 'dash_table'
         self._valid_wildcard_attributes =            []
-        self.available_properties = ['active_cell', 'columns', 'content_style', 'css', 'data', 'data_previous', 'data_timestamp', 'editable', 'end_cell', 'id', 'is_focused', 'merge_duplicate_headers', 'n_fixed_columns', 'n_fixed_rows', 'row_deletable', 'row_selectable', 'selected_cells', 'selected_rows', 'start_cell', 'style_as_list_view', 'pagination_mode', 'pagination_settings', 'navigation', 'column_conditional_dropdowns', 'column_static_dropdown', 'column_static_tooltip', 'column_conditional_tooltips', 'tooltips', 'tooltip_delay', 'tooltip_duration', 'filtering', 'filtering_settings', 'filtering_type', 'filtering_types', 'sorting', 'sorting_type', 'sorting_settings', 'sorting_treat_empty_string_as_none', 'style_table', 'style_cell', 'style_data', 'style_filter', 'style_header', 'style_cell_conditional', 'style_data_conditional', 'style_filter_conditional', 'style_header_conditional', 'virtualization', 'derived_viewport_data', 'derived_viewport_indices', 'derived_viewport_selected_rows', 'derived_virtual_data', 'derived_virtual_indices', 'derived_virtual_selected_rows', 'dropdown_properties']
+        self.available_properties = ['active_cell', 'columns', 'locale_format', 'content_style', 'css', 'data', 'data_previous', 'data_timestamp', 'editable', 'end_cell', 'id', 'is_focused', 'merge_duplicate_headers', 'n_fixed_columns', 'n_fixed_rows', 'row_deletable', 'row_selectable', 'selected_cells', 'selected_rows', 'start_cell', 'style_as_list_view', 'pagination_mode', 'pagination_settings', 'navigation', 'column_conditional_dropdowns', 'column_static_dropdown', 'column_static_tooltip', 'column_conditional_tooltips', 'tooltips', 'tooltip_delay', 'tooltip_duration', 'filtering', 'filtering_settings', 'filtering_type', 'filtering_types', 'sorting', 'sorting_type', 'sorting_settings', 'sorting_treat_empty_string_as_none', 'style_table', 'style_cell', 'style_data', 'style_filter', 'style_header', 'style_cell_conditional', 'style_data_conditional', 'style_filter_conditional', 'style_header_conditional', 'virtualization', 'derived_viewport_data', 'derived_viewport_indices', 'derived_viewport_selected_rows', 'derived_virtual_data', 'derived_virtual_indices', 'derived_virtual_selected_rows', 'dropdown_properties']
         self.available_wildcard_properties =            []
 
         _explicit_args = kwargs.pop('_explicit_args')