Fix fromisoformat for python 3.10

src/pytroll_watchers/dataspace_watcher.py

@@ -105,18 +105,18 @@ def run_every(interval):
 
 def update_last_publication_date(last_publication_date, metadata):
     """Update the last publication data based on the metadata."""
-    publication_date = _fromisoformat(metadata)
+    publication_date = _fromisoformat(metadata["PublicationDate"])
     if publication_date > last_publication_date:
         last_publication_date = publication_date
     return last_publication_date
 
 
-def _fromisoformat(metadata):
+def _fromisoformat(datestring):
     try:
-        return datetime.datetime.fromisoformat(metadata["PublicationDate"])
+        return datetime.datetime.fromisoformat(datestring)
     except ValueError:
         # for python 3.10
-        return datetime.datetime.strptime(metadata["PublicationDate"], "%Y-%m-%dT%H:%M:%S.%f%z")
+        return datetime.datetime.strptime(datestring, "%Y-%m-%dT%H:%M:%S.%f%z")
 
 
 def generate_download_links_since(filter_string, dataspace_auth, last_publication_date, storage_options):

src/pytroll_watchers/dhus_watcher.py

@@ -13,7 +13,7 @@
 from geojson import Polygon
 from upath import UPath
 
-from pytroll_watchers.dataspace_watcher import run_every
+from pytroll_watchers.dataspace_watcher import _fromisoformat, run_every
 from pytroll_watchers.publisher import file_publisher_from_generator
 
 logger = logging.getLogger(__name__)
@@ -109,10 +109,10 @@ def generate_download_links(server, filter_params):
         results_dict = construct_results_dict(entry)
         mda["platform_name"] = results_dict["Satellite name"].capitalize() + results_dict["Satellite number"]
         mda["sensor"] = results_dict["Instrument"]
-        mda["ingestion_date"] = dt.datetime.fromisoformat(results_dict["Ingestion Date"])
+        mda["ingestion_date"] = _fromisoformat(results_dict["Ingestion Date"])
         mda["product_type"] = results_dict["Product type"]
-        mda["start_time"] = dt.datetime.fromisoformat(results_dict["Sensing start"])
-        mda["end_time"] = dt.datetime.fromisoformat(results_dict["Sensing stop"])
+        mda["start_time"] = _fromisoformat(results_dict["Sensing start"])
+        mda["end_time"] = _fromisoformat(results_dict["Sensing stop"])
         mda["orbit_number"] = int(results_dict["Orbit number (start)"])
 
         mda["checksum"] = dict(algorithm=entry["Checksum"]["Algorithm"], hash=entry["Checksum"]["Value"])