UTC -> timezone.utc for py 3.8

geedim/collection.py

@@ -20,7 +20,7 @@
 import re
 import textwrap as wrap
 from collections import OrderedDict
-from datetime import datetime, timedelta, UTC
+from datetime import datetime, timedelta, timezone
 from typing import Dict, List, Union
 
 import ee
@@ -80,7 +80,7 @@ def parse_date(date: Union[datetime, str], var_name=None) -> datetime:
     var_name = var_name or 'date'
     if isinstance(date, str):
         try:
-            date = datetime.strptime(date, '%Y-%m-%d').replace(tzinfo=UTC)
+            date = datetime.strptime(date, '%Y-%m-%d').replace(tzinfo=timezone.utc)
         except ValueError:
             raise ValueError(f'{var_name} should be a datetime instance or UTC string with format: "%Y-%m-%d"')
     return date
@@ -371,7 +371,7 @@ def _get_properties_table(self, properties: Dict, schema: Dict = None) -> str:
             for prop_name, key_dict in schema.items():
                 if prop_name in im_prop_dict:
                     if prop_name == 'system:time_start':  # convert timestamp to date string
-                        dt = datetime.fromtimestamp(im_prop_dict[prop_name] / 1000, tz=UTC)
+                        dt = datetime.fromtimestamp(im_prop_dict[prop_name] / 1000, tz=timezone.utc)
                         abbrev_dict[key_dict['abbrev']] = datetime.strftime(dt, '%Y-%m-%d %H:%M')
                     else:
                         abbrev_dict[key_dict['abbrev']] = im_prop_dict[prop_name]
@@ -616,7 +616,7 @@ def composite(
         comp_image = comp_image.set('INPUT_IMAGES', 'TABLE:\n' + props_str)
 
         # construct an ID for the composite
-        dates = [datetime.fromtimestamp(item['system:time_start'] / 1000, tz=UTC) for item in props.values()]
+        dates = [datetime.fromtimestamp(item['system:time_start'] / 1000, tz=timezone.utc) for item in props.values()]
         start_date = min(dates).strftime('%Y_%m_%d')
         end_date = max(dates).strftime('%Y_%m_%d')
 

geedim/download.py

@@ -23,7 +23,7 @@
 import time
 import warnings
 from concurrent.futures import as_completed, ThreadPoolExecutor
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 from itertools import product
 from typing import Dict, Iterator, List, Optional, Tuple, Union
 
@@ -164,7 +164,7 @@ def id(self) -> Optional[str]:
     def date(self) -> datetime | None:
         """Image capture date & time.  None if the image ``system:time_start`` property is not set."""
         if 'system:time_start' in self.properties:
-            return datetime.fromtimestamp(self.properties['system:time_start'] / 1000, tz=UTC)
+            return datetime.fromtimestamp(self.properties['system:time_start'] / 1000, tz=timezone.utc)
         else:
             return None
 

tests/test_collection.py

@@ -14,7 +14,7 @@
     limitations under the License.
 """
 
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 from typing import Dict, List, Union
 
 import ee
@@ -659,7 +659,7 @@ def test_composite_date(image_list: str, request: pytest.FixtureRequest):
     gd_collection = MaskedCollection.from_list(image_list)
     # assumes the image_list's are in date order
     first_date = datetime.fromtimestamp(
-        gd_collection.ee_collection.first().get('system:time_start').getInfo() / 1000, tz=UTC
+        gd_collection.ee_collection.first().get('system:time_start').getInfo() / 1000, tz=timezone.utc
     )
     comp_im = gd_collection.composite()
     assert comp_im.date == first_date

tests/test_download.py

@@ -17,7 +17,7 @@
 from __future__ import annotations
 
 import pathlib
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 from itertools import product
 from typing import Dict, List
 
@@ -232,7 +232,9 @@ def test_s2_props(s2_sr_base_image: BaseImage):
     assert s2_sr_base_image.scale == min_band_info['crs_transform'][0]
     assert s2_sr_base_image.transform == Affine(*min_band_info['crs_transform'])
     assert s2_sr_base_image.shape == tuple(min_band_info['dimensions'][::-1])
-    assert s2_sr_base_image.date == datetime.fromtimestamp(s2_sr_base_image.properties['system:time_start'] / 1000, UTC)
+    assert s2_sr_base_image.date == datetime.fromtimestamp(
+        s2_sr_base_image.properties['system:time_start'] / 1000, timezone.utc
+    )
     assert s2_sr_base_image.size is not None
     assert s2_sr_base_image.footprint is not None
     assert s2_sr_base_image.footprint['type'] == 'Polygon'