Sync with main

.github/workflows/downstream.yml

@@ -50,7 +50,7 @@ jobs:
       - uses: jupyterlab/maintainer-tools/.github/actions/downstream-test@v1
         with:
           package_name: nbconvert
-          package_spec: pip install -e ".[test]"
+          package_spec: -e ".[test]"
 
   jupyter_server:
     runs-on: ubuntu-latest

.github/workflows/main.yml

@@ -76,7 +76,7 @@ jobs:
           fail_under: 78
 
   docs:
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -86,8 +86,9 @@ jobs:
           # If this fails run `hatch run docs:api` locally
           # and commit.
           git status --porcelain
-          git status -s | grep "A" && exit 1
-          git status -s | grep "M" && exit 1
+          if git status -s | grep "^\s*[AM]"; then
+            exit 1
+          fi
           echo "API docs done"
       - run: hatch run docs:build
 

jupyter_client/jsonutil.py

@@ -11,7 +11,7 @@
 from datetime import datetime
 from typing import Any, Optional, Union
 
-from dateutil.parser import parse as _dateutil_parse
+from dateutil.parser import isoparse as _dateutil_parse
 from dateutil.tz import tzlocal
 
 next_attr_name = "__next__"  # Not sure what downstream library uses this, but left it to be safe
@@ -28,7 +28,7 @@
 
 # holy crap, strptime is not threadsafe.
 # Calling it once at import seems to help.
-datetime.strptime("1", "%d")  # noqa
+datetime.strptime("2000-01-01", "%Y-%m-%d")  # noqa
 
 # -----------------------------------------------------------------------------
 # Classes and functions