Merge pull request #286 from linkml/add-support-for-python3.12

Add support for Python 3.12

Author: pkalita-lbl

.github/workflows/main.yaml

@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.12"]
         exclude:
         - os: windows-latest
           python-version: "3.8"

linkml_runtime/__init__.py

@@ -6,10 +6,7 @@
 # use importlib.metadata to read the version provided
 # by the package during installation. Do not hardcode
 # the version in the code
-try:
-    import importlib.metadata as importlib_metadata
-except ModuleNotFoundError:
-    import importlib_metadata
+import importlib.metadata as importlib_metadata
 
 LINKML = CurieNamespace('linkml', 'https://w3id.org/linkml/')
 TCCM = CurieNamespace('tccm', 'https://ontologies.r.us/tccm/')

linkml_runtime/utils/metamodelcore.py

@@ -278,6 +278,8 @@ def is_valid(cls, value: Union[str, datetime.date, Literal]) -> bool:
             value = value.value
         if isinstance(value, datetime.date):
             value = value.isoformat()
+        if not re.match(r'^\d{4}-\d{2}-\d{2}$', value):
+            return False
         try:
             datetime.date.fromisoformat(str(value))
         except ValueError: