Fix arrow.get with explicit tzinfo=None

Author: HSY

arrow/factory.py

@@ -189,14 +189,15 @@ def get(self, *args: Any, **kwargs: Any) -> Arrow:
         arg_count = len(args)
         locale = kwargs.pop("locale", DEFAULT_LOCALE)
         tz = kwargs.get("tzinfo", None)
+        has_tzinfo_kwarg = "tzinfo" in kwargs
         normalize_whitespace = kwargs.pop("normalize_whitespace", False)
 
         # if kwargs given, send to constructor unless only tzinfo provided
         if len(kwargs) > 1:
             arg_count = 3
 
         # tzinfo kwarg is not provided
-        if len(kwargs) == 1 and tz is None:
+        if len(kwargs) == 1 and not has_tzinfo_kwarg:
             arg_count = 3
 
         # () -> now, @ tzinfo or utc

tests/test_factory.py

@@ -137,6 +137,12 @@ def test_kwarg_tzinfo(self):
             self.factory.get(tzinfo=ZoneInfo("US/Pacific")), self.expected
         )
 
+    def test_kwarg_tzinfo_none(self):
+        assert_datetime_equality(
+            self.factory.get(tzinfo=None),
+            datetime.now(timezone.utc).replace(tzinfo=timezone.utc),
+        )
+
     def test_kwarg_tzinfo_string(self):
         self.expected = (
             datetime.now(timezone.utc)
@@ -287,6 +293,11 @@ def test_two_args_str_str(self):
 
         assert result._datetime == datetime(2013, 1, 1, tzinfo=tz.tzutc())
 
+    def test_two_args_str_str_tzinfo_none(self):
+        result = self.factory.get("2013-01-01", "YYYY-MM-DD", tzinfo=None)
+
+        assert result._datetime == datetime(2013, 1, 1, tzinfo=tz.tzutc())
+
     def test_two_args_str_tzinfo(self):
         result = self.factory.get("2013-01-01", tzinfo=ZoneInfo("US/Pacific"))