Fix: allow both ZoneInfo and Pytz depending on django version (#55)

django_q/utils.py

@@ -1,14 +1,24 @@
 from datetime import datetime
-import pytz
 import calendar
 import inspect
 from datetime import date
 
+import django
 from django.utils import timezone
 from django.conf import settings
 
 from django_q.conf import Conf
 
+if django.VERSION < (4, 0):
+    # pytz is the default in django 3.2. Remove when no support for 3.2
+    from pytz import timezone as ZoneInfo
+else:
+    try:
+        from zoneinfo import ZoneInfo
+    except ImportError:
+        from backports.zoneinfo import ZoneInfo
+
+
 # credits: https://stackoverflow.com/a/4131114
 # Made them aware of timezone
 def add_months(d, months):
@@ -50,7 +60,14 @@ def get_func_repr(func):
 def localtime(value=None) -> datetime:
     """Override for timezone.localtime to deal with naive times and local times"""
     if settings.USE_TZ:
-        return timezone.localtime(value=value, timezone=pytz.timezone(Conf.TIME_ZONE))
+        if django.VERSION >= (4, 0) and settings.USE_DEPRECATED_PYTZ:
+            import pytz
+
+            convert_to_tz = pytz.timezone(Conf.TIME_ZONE)
+        else:
+            convert_to_tz = ZoneInfo(Conf.TIME_ZONE)
+
+        return timezone.localtime(value=value, timezone=convert_to_tz)
     if value is None:
         return datetime.now()
     else: