Move docs bulid to Python 3.13 and remove method that was removed in napari 0.6 (#242)

Closes #241

Author: willingc

.github/workflows/deploy_docs.yml

@@ -30,7 +30,7 @@ jobs:
 
     - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
       with:
-        python-version: "3.10"
+        python-version: "3.13"
 
     - uses: tlambert03/setup-qt-libs@19e4ef2d781d81f5f067182e228b54ec90d23b76 # v1.8
 

docs/conf.py

@@ -20,6 +20,8 @@
 
 import imageio.v2 as iio
 import napari
+from napari.settings import get_settings
+from qtpy.QtWidgets import QApplication
 from sphinx_gallery import scrapers
 from sphinx_gallery.sorting import ExampleTitleSortKey
 
@@ -248,14 +250,11 @@ def napari_scraper(block, block_vars, gallery_conf):
 
     Looks for any QtMainWindow instances and takes a screenshot of them.
 
-    `app.processEvents()` allows Qt events to propagateo and prevents hanging.
+    `processEvents()` allows Qt events to propagate and prevents hanging.
     """
     imgpath_iter = block_vars["image_path_iterator"]
 
-    if app := napari.qt.get_app():
-        app.processEvents()
-    else:
-        return ""
+    QApplication.processEvents()
 
     img_paths = []
     for win, img_path in zip(
@@ -267,15 +266,12 @@ def napari_scraper(block, block_vars, gallery_conf):
         win._window.screenshot(img_path, canvas_only=False)
 
     napari.Viewer.close_all()
-    app.processEvents()
+    QApplication.processEvents()
 
     return scrapers.figure_rst(img_paths, gallery_conf["src_dir"])
 
 
 def reset_napari(gallery_conf, fname):
-    from napari.settings import get_settings
-    from qtpy.QtWidgets import QApplication
-
     settings = get_settings()
     settings.appearance.theme = "dark"