Merge remote-tracking branch 'origin/main' into pre-release

Author: pombredanne

src/commoncode/filetype.py

@@ -7,7 +7,7 @@
 #
 
 import os
-from datetime import datetime
+from datetime import datetime, timezone
 
 from commoncode.system import on_posix
 from commoncode.functional import memoize
@@ -164,7 +164,10 @@ def get_last_modified_date(location):
     yyyymmdd = ''
     if is_file(location):
         utc_date = datetime.isoformat(
-            datetime.utcfromtimestamp(os.path.getmtime(location))
+            datetime.fromtimestamp(
+                os.path.getmtime(location),
+                tz=timezone.utc,
+            )
         )
         yyyymmdd = utc_date[:10]
     return yyyymmdd

src/commoncode/system.py

@@ -94,8 +94,10 @@ def is_on_ubuntu_22(os_release_location='/etc/os-release'):
     os_release_info = parse_os_release(os_release_location)
     return os_release_info['ID'] == 'ubuntu' and '22' in os_release_info['VERSION_ID']
 
-
-on_ubuntu_22 = is_on_ubuntu_22()
+try:
+    on_ubuntu_22 = is_on_ubuntu_22()
+except FileNotFoundError:
+    on_ubuntu_22 = False
 
 del is_on_ubuntu_22