Merge pull request #2102 from AnnMarieW/fix-pages-exclude-files

fixed pages to exclude files starting with `.`

Author: alexcjohnson

Diff for: CHANGELOG.md

@@ -5,7 +5,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ## [UNRELEASED]
 
 ### Fixed
-
+- [#2102](https://github.com/plotly/dash/pull/2102) Fix bug as reported in [dash-labs #113](https://github.com/plotly/dash-labs/issues/113) where files starting with `.` were not excluded when building `dash.page_registry`.
 - [#2098](https://github.com/plotly/dash/pull/2098) Accept HTTP code 400 as well as 401 for JWT expiry
 - [#2097](https://github.com/plotly/dash/pull/2097) Fix bug [#2095](https://github.com/plotly/dash/issues/2095) with TypeScript compiler and `React.FC` empty valueDeclaration error & support empty props components.
 - [#2104](https://github.com/plotly/dash/pull/2104) Fix bug [#2099](https://github.com/plotly/dash/issues/2099) with Dropdown clearing search value when a value is selected.

Diff for: dash/_pages.py

@@ -199,9 +199,7 @@ def register_page(
         APNG, AVIF, GIF, JPEG, JPG, PNG, SVG, WebP.
 
     -  `image_url`:
-       This will use the exact image url provided when sharing on social media.
-       This is appealing when the image you want to share is hosted on a CDN.
-       Using this attribute overrides the image attribute.
+       Overrides the image property and sets the `<image>` meta tag to the provided image URL.
 
     - `redirect_from`:
        A list of paths that should redirect to this page.

Diff for: dash/dash.py

@@ -2167,7 +2167,11 @@ def _import_layouts_from_pages(self):
 
         for (root, _, files) in os.walk(walk_dir):
             for file in files:
-                if file.startswith("_") or not file.endswith(".py"):
+                if (
+                    file.startswith("_")
+                    or file.startswith(".")
+                    or not file.endswith(".py")
+                ):
                     continue
                 with open(os.path.join(root, file), encoding="utf-8") as f:
                     content = f.read()

Diff for: tests/integration/multi_page/pages/.no_import.py

@@ -0,0 +1 @@
+raise Exception("files starting with . should not be imported")

Diff for: tests/integration/multi_page/pages/_no_import.py

@@ -0,0 +1 @@
+raise Exception("files starting with _ should not be imported")