Fix broken DeepDiff for dateutils.rrules (#355)

AUTHORS.md

@@ -47,3 +47,4 @@ Authors in order of the timeline of their contributions:
 - Mikhail Khviyuzov [mskhviyu](https://github.com/mskhviyu) for Exclude obj callback strict.
 - [dtorres-sf](https://github.com/dtorres-sf) for the fix for diffing using iterable_compare_func with nested objects.
 - [Enric Pou](https://github.com/epou) for bug fix of ValueError when using Decimal 0.x
+- [Uwe Fladrich] (https://github.com/uwefladrich) for fixing bug when diff'ing non-sequence iterables

deepdiff/diff.py

@@ -11,7 +11,7 @@
 from enum import Enum
 from copy import deepcopy
 from math import isclose as is_close
-from collections.abc import Mapping, Iterable
+from collections.abc import Mapping, Iterable, Sequence
 from collections import defaultdict
 from itertools import zip_longest
 from ordered_set import OrderedSet
@@ -727,7 +727,13 @@ def _diff_iterable_in_order(self, level, parents_ids=frozenset(), _original_type
         else:
             child_relationship_class = NonSubscriptableIterableRelationship
 
-        if self._all_values_basic_hashable(level.t1) and self._all_values_basic_hashable(level.t2) and self.iterable_compare_func is None:
+        if (
+            isinstance(level.t1, Sequence)
+            and isinstance(level.t2, Sequence)
+            and self._all_values_basic_hashable(level.t1)
+            and self._all_values_basic_hashable(level.t2)
+            and self.iterable_compare_func is None
+        ):
             local_tree_pass = TreeResult()
             self._diff_ordered_iterable_by_difflib(
                 level,

requirements-dev-3.7.txt

@@ -7,3 +7,4 @@ ipdb==0.13.9
 numpy==1.21.6
 pytest==7.1.2
 python-dotenv==0.20.0
+python-dateutil==2.8.2

requirements-dev.txt

@@ -13,3 +13,4 @@ watchdog==2.1.9
 Sphinx==5.1.1
 sphinx-sitemap==2.2.0
 flake8==5.0.4
+python-dateutil==2.8.2

tests/test_diff_text.py

@@ -1713,3 +1713,34 @@ def __thing2(self):
         }
 
         assert expected2 == diff2
+
+    def test_diffs_rrules(self):
+
+        from dateutil.rrule import MONTHLY, rrule
+
+        d = DeepDiff(
+            rrule(freq=MONTHLY, count=5, dtstart=datetime.datetime(2014, 12, 31)),
+            rrule(freq=MONTHLY, count=4, dtstart=datetime.datetime(2011, 12, 31)),
+        )
+
+        assert d == {
+            "values_changed": {
+                "root[0]": {
+                    "new_value": datetime.datetime(2011, 12, 31, 0, 0),
+                    "old_value": datetime.datetime(2014, 12, 31, 0, 0),
+                },
+                "root[1]": {
+                    "new_value": datetime.datetime(2012, 1, 31, 0, 0),
+                    "old_value": datetime.datetime(2015, 1, 31, 0, 0),
+                },
+                "root[2]": {
+                    "new_value": datetime.datetime(2012, 3, 31, 0, 0),
+                    "old_value": datetime.datetime(2015, 3, 31, 0, 0),
+                },
+                "root[3]": {
+                    "new_value": datetime.datetime(2012, 5, 31, 0, 0),
+                    "old_value": datetime.datetime(2015, 5, 31, 0, 0),
+                },
+            },
+            "iterable_item_removed": {"root[4]": datetime.datetime(2015, 7, 31, 0, 0)},
+        }