Updates

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

@@ -0,0 +1,25 @@
+from django import VERSION, conf
+
+from .base import TimeZoneNotFoundError
+
+USE_PYTZ_DEFAULT = getattr(conf.settings, "USE_DEPRECATED_PYTZ", VERSION < (4, 0))
+
+tz_backend_cache = {}
+
+
+def get_tz_backend(use_pytz):
+    use_pytz = USE_PYTZ_DEFAULT if use_pytz is None else use_pytz
+    if use_pytz not in tz_backend_cache:
+        if use_pytz:
+            from .pytz import PYTZBackend
+
+            klass = PYTZBackend
+        else:
+            from .zoneinfo import ZoneInfoBackend
+
+            klass = ZoneInfoBackend
+        tz_backend_cache[use_pytz] = klass()
+    return tz_backend_cache[use_pytz]
+
+
+__all__ = ["TimeZoneNotFoundError", "get_tz_backend"]

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

@@ -0,0 +1,19 @@
+from abc import ABC, abstractmethod
+
+
+class TimeZoneNotFoundError(Exception):
+    pass
+
+
+class TimeZoneBackend(ABC):
+    utc_tzobj = None
+    all_tzstrs = None
+    base_tzstrs = None
+
+    @abstractmethod
+    def is_tzobj(self, value):
+        pass
+
+    @abstractmethod
+    def to_tzobj(self, tzstr):
+        pass

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

@@ -0,0 +1,18 @@
+import pytz
+
+from .base import TimeZoneBackend, TimeZoneNotFoundError
+
+
+class PYTZBackend(TimeZoneBackend):
+    utc_tzobj = pytz.utc
+    all_tzstrs = pytz.all_timezones
+    base_tzstrs = pytz.common_timezones
+
+    def is_tzobj(self, value):
+        return value is pytz.UTC or isinstance(value, pytz.tzinfo.BaseTzInfo)
+
+    def to_tzobj(self, tzstr):
+        try:
+            return pytz.timezone(tzstr)
+        except pytz.UnknownTimeZoneError as err:
+            raise TimeZoneNotFoundError from err

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