Updates

ETB-API/venv/lib/python3.12/site-packages/timezone_field/backends/zoneinfo.py

@@ -0,0 +1,27 @@
+try:
+    import zoneinfo
+except ImportError:
+    from backports import zoneinfo
+
+from .base import TimeZoneBackend, TimeZoneNotFoundError
+
+
+class ZoneInfoBackend(TimeZoneBackend):
+    utc_tzobj = zoneinfo.ZoneInfo("UTC")
+    all_tzstrs = zoneinfo.available_timezones()
+    base_tzstrs = zoneinfo.available_timezones()
+    # Remove the "Factory" timezone as it can cause ValueError exceptions on
+    # some systems, e.g. FreeBSD, if the system zoneinfo database is used.
+    all_tzstrs.discard("Factory")
+    base_tzstrs.discard("Factory")
+
+    def is_tzobj(self, value):
+        return isinstance(value, zoneinfo.ZoneInfo)
+
+    def to_tzobj(self, tzstr):
+        if tzstr in (None, ""):
+            raise TimeZoneNotFoundError
+        try:
+            return zoneinfo.ZoneInfo(tzstr)
+        except zoneinfo.ZoneInfoNotFoundError as err:
+            raise TimeZoneNotFoundError from err