Datetime fix for older Py versions

bw_processing/datapackage.py

@@ -31,7 +31,7 @@
 from .filesystem import clean_datapackage_name
 from .io_helpers import file_reader, file_writer
 from .proxies import Proxy, UndefinedInterface
-from .utils import check_name, check_suffix, load_bytes, resolve_dict_iterator
+from .utils import check_name, check_suffix, load_bytes, resolve_dict_iterator, utc_now
 
 
 class DatapackageBase(ABC):
@@ -369,7 +369,7 @@ def _create(
             "id": id_ or uuid.uuid4().hex,
             "licenses": (metadata or {}).get("licenses", DEFAULT_LICENSES),
             "resources": [],
-            "created": datetime.datetime.now(datetime.UTC).isoformat("T") + "Z",
+            "created": utc_now().isoformat("T") + "Z",
             "combinatorial": combinatorial,
             "sequential": sequential,
             "seed": seed,

bw_processing/utils.py

@@ -1,6 +1,7 @@
 from io import BytesIO
 from pathlib import Path
 from typing import Any, Union
+from datetime import datetime
 
 import numpy as np
 from numpy.lib.recfunctions import repack_fields
@@ -98,3 +99,11 @@ def resolve_dict_iterator(iterator: Any, nrows: int = None) -> tuple:
         ),
         array["flip"],
     )
+
+
+def utc_now() -> datetime:
+    """Get current datetime compatible with Py 3.8 to 3.12"""
+    if hasattr(datetime, "UTC"):
+        return datetime.now(datetime.UTC)
+    else:
+        return datetime.utcnow()