Merge branch 'dev' of github.com:petar-qb/dash into fix/store-output-value-in-persistence-storage

Author: petar-qb

CHANGELOG.md

@@ -6,6 +6,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 
 ## Fixed
 - [#3278](https://github.com/plotly/dash/pull/3278) Fix loading selector with children starting at the same digit. Fix [#3276](https://github.com/plotly/dash/issues/3276)
+- [#3280](https://github.com/plotly/dash/pull/3280) Remove flask typing import not available in earlier versions.
 
 ## [3.0.3] - 2025-04-14
 

dash/_jupyter.py

@@ -294,6 +294,8 @@ def run_app(
         else:
             requests_pathname_prefix = "/"
 
+        routes_pathname_prefix = app.config.get("routes_pathname_prefix", "/")
+
         # FIXME Move config initialization to main dash __init__
         # low-level setter to circumvent Dash's config locking
         # normally it's unsafe to alter requests_pathname_prefix this late, but
@@ -355,7 +357,7 @@ def run():
         self._servers[(host, port)] = server
 
         # Wait for server to start up
-        alive_url = f"http://{host}:{port}{requests_pathname_prefix}_alive_{JupyterDash.alive_token}"
+        alive_url = f"http://{host}:{port}{routes_pathname_prefix}_alive_{JupyterDash.alive_token}"
 
         def _get_error():
             try:

dash/dash.py

@@ -22,7 +22,6 @@
 
 import flask
 
-from flask.typing import RouteCallable
 from importlib_metadata import version as _get_distribution_version
 
 from dash import dcc
@@ -81,6 +80,8 @@
 from ._jupyter import jupyter_dash, JupyterDisplayMode
 from .types import RendererHooks
 
+RouteCallable = Callable[..., Any]
+
 # If dash_design_kit is installed, check for version
 ddk_version = None
 if find_spec("dash_design_kit"):