Makes passing a naive datetime to instance() default to UTC

Author: sdispater

pendulum/pendulum.py

@@ -175,7 +175,7 @@ def instance(cls, dt):
         return cls(
             dt.year, dt.month, dt.day,
             dt.hour, dt.minute, dt.second, dt.microsecond,
-            tzinfo=dt.tzinfo
+            tzinfo=dt.tzinfo or pytz.UTC
         )
 
     @classmethod
@@ -188,7 +188,7 @@ def parse(cls, time=None, tz=pytz.UTC):
 
         :param tz: The timezone
         :type tz: BaseTzInfo or str or None
-
+q
         :rtype: Pendulum
         """
         if time is None:

tests/pendulum_tests/test_construct.py

@@ -105,3 +105,11 @@ def test_yesterday(self):
         yesterday = Pendulum.yesterday()
         self.assertIsInstanceOfPendulum(yesterday)
         self.assertEqual(-1, now.diff(yesterday, False).in_days())
+
+    def test_instance_naive_datetime_defaults_to_utc(self):
+        now = Pendulum.instance(datetime.now())
+        self.assertEqual('UTC', now.timezone_name)
+
+    def test_instance_timezone_aware_datetime(self):
+        now = Pendulum.instance(datetime.now(pytz.timezone('Europe/Paris')))
+        self.assertEqual('Europe/Paris', now.timezone_name)