Merge remote-tracking branch 'origin/dev' into cam/1263/fix-infinite-resize-loop

Author: camdecoster

.github/workflows/testing.yml

@@ -135,8 +135,7 @@ jobs:
 
       - name: Run typing tests
         run: |
-          cd tests
-          pytest compliance/test_typing.py
+          pytest tests/compliance/test_typing.py
 
   background-callbacks:
     name: Run Background & Async Callback Tests (Python ${{ matrix.python-version }})

CHANGELOG.md

@@ -8,14 +8,18 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - [#3395](https://github.com/plotly/dash/pull/3396) Add position argument to hooks.devtool
 - [#3403](https://github.com/plotly/dash/pull/3403) Add app_context to get_app, allowing to get the current app in routes.
 - [#3407](https://github.com/plotly/dash/pull/3407) Add `hidden` to callback arguments, hiding the callback from appearing in the devtool callback graph.
+- [#3397](https://github.com/plotly/dash/pull/3397) Add optional callbacks, suppressing callback warning for missing component ids for a single callback.
 - [#3424](https://github.com/plotly/dash/pull/3424) Adds support for `Patch` on clientside callbacks class `dash_clientside.Patch`, as well as supporting side updates, eg: (Running, SetProps).
 - [#3347](https://github.com/plotly/dash/pull/3347) Added 'api_endpoint' to `callback` to expose api endpoints at the provided path for use to be executed directly without dash.
+- [#3445](https://github.com/plotly/dash/pull/3445) Added API to reverse direction of slider component.
+- [#3460](https://github.com/plotly/dash/pull/3460) Add `/health` endpoint for server monitoring and health checks.
+- [#3465](https://github.com/plotly/dash/pull/3465) Plotly cloud integrations, add devtool API, placeholder plotly cloud CLI & publish button, `dash[cloud]` extra dependencies. 
 
 ## Fixed
 - [#3395](https://github.com/plotly/dash/pull/3395) Fix Components added through set_props() cannot trigger related callback functions. Fix [#3316](https://github.com/plotly/dash/issues/3316)
-- [#3397](https://github.com/plotly/dash/pull/3397) Add optional callbacks, suppressing callback warning for missing component ids for a single callback.
 - [#3415](https://github.com/plotly/dash/pull/3415) Fix the error triggered when only a single no_update is returned for client-side callback functions with multiple Outputs. Fix [#3366](https://github.com/plotly/dash/issues/3366)
 - [#3416](https://github.com/plotly/dash/issues/3416) Fix DeprecationWarning in dash/_jupyter.py by migrating from deprecated ipykernel.comm.Comm to comm module
+- [#3488](https://github.com/plotly/dash/pull/3488) Fix pkgutil.find_loader removal in Python 3.14
 
 ## [3.2.0] - 2025-07-31
 

components/dash-core-components/src/components/Slider.react.js

@@ -156,6 +156,11 @@ Slider.propTypes = {
      */
     verticalHeight: PropTypes.number,
 
+    /**
+     * If the value is true, it means the component is rendered reverse.
+     */
+    reverse: PropTypes.bool,
+
     /**
      * Additional CSS class for the root DOM node
      */
@@ -208,6 +213,7 @@ Slider.defaultProps = {
     persisted_props: ['value'],
     persistence_type: 'local',
     verticalHeight: 400,
+    reverse: false,
 };
 
 export const propTypes = Slider.propTypes;

components/dash-core-components/src/fragments/Slider.react.js

@@ -27,6 +27,7 @@ const sliderProps = [
     'included',
     'tooltip',
     'vertical',
+    'reverse',
     'id',
 ];
 

dash/_callback.py

@@ -2,7 +2,7 @@
 import hashlib
 from functools import wraps
 
-from typing import Callable, Optional, Any, List, Tuple, Union
+from typing import Callable, Optional, Any, List, Tuple, Union, Dict
 
 
 import asyncio
@@ -59,10 +59,10 @@ def _invoke_callback(func, *args, **kwargs):  # used to mark the frame for the d
     return func(*args, **kwargs)  # %% callback invoked %%
 
 
-GLOBAL_CALLBACK_LIST = []
-GLOBAL_CALLBACK_MAP = {}
-GLOBAL_INLINE_SCRIPTS = []
-GLOBAL_API_PATHS = {}
+GLOBAL_CALLBACK_LIST: List[Any] = []
+GLOBAL_CALLBACK_MAP: Dict[str, Any] = {}
+GLOBAL_INLINE_SCRIPTS: List[Any] = []
+GLOBAL_API_PATHS: Dict[str, Any] = {}
 
 
 # pylint: disable=too-many-locals,too-many-arguments
@@ -177,7 +177,7 @@ def callback(
             callbacks in the Dash devtools.
     """
 
-    background_spec = None
+    background_spec: Any = None
 
     config_prevent_initial_callbacks = _kwargs.pop(
         "config_prevent_initial_callbacks", False
@@ -186,7 +186,7 @@ def callback(
     callback_list = _kwargs.pop("callback_list", GLOBAL_CALLBACK_LIST)
 
     if background:
-        background_spec: Any = {
+        background_spec = {
             "interval": interval,
         }
 
@@ -687,7 +687,7 @@ def add_context(*args, **kwargs):
                 args, kwargs, inputs_state_indices, has_output, insert_output
             )
 
-            response: dict = {"multi": True}
+            response: dict = {"multi": True}  # type: ignore
 
             jsonResponse = None
             try:
@@ -759,7 +759,7 @@ async def async_add_context(*args, **kwargs):
                 args, kwargs, inputs_state_indices, has_output, insert_output
             )
 
-            response: dict = {"multi": True}
+            response = {"multi": True}
 
             try:
                 if background is not None:

dash/_callback_context.py

@@ -10,7 +10,9 @@
 from ._utils import AttributeDict, stringify_id
 
 
-context_value = contextvars.ContextVar("callback_context")
+context_value: contextvars.ContextVar[
+    typing.Dict[str, typing.Any]
+] = contextvars.ContextVar("callback_context")
 context_value.set({})
 
 

dash/_dash_renderer.py

@@ -1,10 +1,11 @@
 import os
+from typing import Any, List, Dict
 
 __version__ = "2.2.0"
 
 _available_react_versions = {"18.3.1", "18.2.0", "16.14.0"}
 _available_reactdom_versions = {"18.3.1", "18.2.0", "16.14.0"}
-_js_dist_dependencies = []  # to be set by _set_react_version
+_js_dist_dependencies: List[Dict[str, Any]] = []  # to be set by _set_react_version
 
 
 def _set_react_version(v_react, v_reactdom=None):

dash/_get_app.py

@@ -2,10 +2,11 @@
 
 from contextvars import ContextVar, copy_context
 from textwrap import dedent
+from typing import Any, Optional
 
-APP = None
+APP: Optional[Any] = None
 
-app_context = ContextVar("dash_app_context")
+app_context: ContextVar[Any] = ContextVar("dash_app_context")
 
 
 def with_app_context(func):
@@ -39,6 +40,13 @@ def wrap(*args, **kwargs):
 
 
 def get_app():
+    """
+    Return the current Dash app instance.
+
+    Useful in multi-page apps when Python files within the `pages/` folder
+    need to reference the `app` object but importing it directly would cause
+    a circular import error.
+    """
     try:
         ctx_app = app_context.get()
         if ctx_app is not None:

dash/_hooks.py

@@ -27,7 +27,9 @@
 
 # pylint: disable=too-few-public-methods
 class _Hook(_tx.Generic[HookDataType]):
-    def __init__(self, func, priority=0, final=False, data: HookDataType = None):
+    def __init__(
+        self, func, priority=0, final=False, data: _t.Optional[HookDataType] = None
+    ):
         self.func = func
         self.final = final
         self.data = data
@@ -39,7 +41,7 @@ def __call__(self, *args, **kwargs):
 
 class _Hooks:
     def __init__(self) -> None:
-        self._ns = {
+        self._ns: _t.Dict[str, _t.List[_t.Any]] = {
             "setup": [],
             "layout": [],
             "routes": [],
@@ -49,14 +51,14 @@ def __init__(self) -> None:
             "custom_data": [],
             "dev_tools": [],
         }
-        self._js_dist = []
-        self._css_dist = []
+        self._js_dist: _t.List[_t.Any] = []
+        self._css_dist: _t.List[_t.Any] = []
         self._clientside_callbacks: _t.List[
             _t.Tuple[ClientsideFuncType, _t.Any, _t.Any]
         ] = []
 
         # final hooks are a single hook added to the end of regular hooks.
-        self._finals = {}
+        self._finals: _t.Dict[str, _t.Any] = {}
 
     def add_hook(
         self,