Passing another test. Fixed the separator to be any character

adafruit_datetime.py

@@ -1262,6 +1262,11 @@ class datetime(date):
         """
         return self._tzinfo
 
+    @property
+    def fold(self):
+        """Fold."""
+        return self._fold
+
     # Class methods
 
     # pylint: disable=protected-access
@@ -1311,8 +1316,10 @@ class datetime(date):
         Valid format is ``YYYY-MM-DD[*HH[:MM[:SS[.fff[fff]]]][+HH:MM[:SS[.ffffff]]]]``
 
         """
-        if "T" in date_string:
-            date_string, time_string = date_string.split("T")
+        time_string = None
+        if len(date_string) > 10:
+            time_string = date_string[11:]
+            date_string = date_string[:10]
             dateval = date.fromisoformat(date_string)
             timeval = time.fromisoformat(time_string)
         else:

tests/test_datetime.py

@@ -1033,8 +1033,6 @@ class TestDateTime(TestDate):
                 self.assertIsInstance(dt, DateTimeSubclass)
                 self.assertEqual(dt.extra, 7)
 
-    # TODO
-    @unittest.skip("timezone not implemented")
     def test_fromisoformat_datetime(self):
         # Test that isoformat() is reversible
         base_dates = [(1, 1, 1), (1900, 1, 1), (2004, 11, 12), (2017, 5, 30)]