Update import for _pseudo_parse_arglist

Although this is a private API, its useful for the lssttasks extension.
We'll need to revisit this if the API does prove to be too unstable to
use in our own purpose.

changelog.d/20240430_155714_jsick_DM_44137.md

@@ -2,6 +2,8 @@
 
 - Technotes ignore files in the repository with `.md`, `.rst`, and `.ipynb` extensions if they aren't the index file. Since technotes are single-page documents, only the index file should be used as a source file. This change lets authors include auxillary notebooks with their technotes without having to explicitly exclude them from the technote build process. This is implemented with `technote.conf.extend_excludes_for_non_index_source`.
 
+- In `documenteer.ext.lssttasks`, attempt to import `_pseudo_parse_arglist` from `sphinx.domains.python._annotations` before falling back to the `sphinx.domains.python` module. Ultimately this is a workaround.
+
 ### Other changes
 
 - Added `defusedxml` as a dev dependency. This is used by Sphinx's `sphinx.testing.fixtures`, but isn't included as a dependency by Sphinx itself. This change ensures that `defusedxml` is installed when running the tests.

src/documenteer/ext/lssttasks/pyapisummary.py

@@ -13,7 +13,12 @@
     desc_signature,
     seealso,
 )
-from sphinx.domains.python import PyXRefRole, _pseudo_parse_arglist
+
+try:
+    from sphinx.domains.python._annotations import _pseudo_parse_arglist
+except ImportError:
+    from sphinx.domains.python import _pseudo_parse_arglist
+from sphinx.domains.python import PyXRefRole
 from sphinx.errors import SphinxError
 from sphinx.util.inspect import signature as make_signature
 from sphinx.util.inspect import stringify_signature