Support matches-style callbacks on non-dictionary objects that are co…

…mpatible with pydash.get().

Refs #168

CHANGELOG.rst

@@ -4,6 +4,8 @@ Changelog
 =========
 
 
+- Support matches-style callbacks on non-dictionary objects that are compatible with ``pydash.get`` in functions like ``pydash.find``.
+
 v5.0.2 (2021-07-15)
 -------------------
 

src/pydash/helpers.py

@@ -102,7 +102,7 @@ def iteriteratee(obj, iteratee=None, reverse=False):
 
 def iterator(obj):
     """Return iterative based on object type."""
-    if isinstance(obj, dict):
+    if isinstance(obj, Mapping):
         return obj.items()
     elif hasattr(obj, "iteritems"):
         return obj.iteritems()  # noqa: B301

src/pydash/predicates.py

@@ -4,6 +4,7 @@
 .. versionadded:: 2.0.0
 """
 
+from collections.abc import Iterable, Mapping
 import datetime
 from itertools import islice
 import json
@@ -13,7 +14,7 @@
 
 import pydash as pyd
 
-from .helpers import BUILTINS, NUMBER_TYPES, UNSET, callit, iterator
+from .helpers import BUILTINS, NUMBER_TYPES, UNSET, base_get, callit, iterator
 
 
 __all__ = (
@@ -914,22 +915,16 @@ def cbk(obj_value, src_value):
     else:
         cbk = customizer
 
-    if (
-        isinstance(obj, dict)
-        and isinstance(source, dict)
-        or isinstance(obj, list)
-        and isinstance(source, list)
-        or isinstance(obj, tuple)
-        and isinstance(source, tuple)
-    ):
+    if isinstance(source, (Mapping, Iterable)) and not isinstance(source, str):
         # Set equal to True if source is empty, otherwise, False and then allow deep comparison to
         # determine equality.
         equal = not source
 
         # Walk a/b to determine equality.
         for key, value in iterator(source):
             try:
-                equal = is_match_with(obj[key], value, cbk, _key=key, _obj=_obj, _source=_source)
+                obj_value = base_get(obj, key)
+                equal = is_match_with(obj_value, value, cbk, _key=key, _obj=_obj, _source=_source)
             except Exception:
                 equal = False
 

tests/test_collections.py

@@ -1,3 +1,4 @@
+from collections import namedtuple
 import math
 from operator import itemgetter
 
@@ -138,6 +139,17 @@ def test_find(case, expected):
     assert _.find(*case) == expected
 
 
+def test_find_class_object():
+    obj = fixtures.Object(a=1, b=2)
+    assert _.find([None, {}, obj], {"b": 2}) == obj
+
+
+def test_find_namedtuple():
+    User = namedtuple("User", ["first_name", "last_name"])
+    obj = User(first_name="Bob", last_name="Smith")
+    assert _.find([None, {}, obj], {"first_name": "Bob"}) == obj
+
+
 @parametrize(
     "case,expected",
     [(({"abc": 1, "xyz": 2, "c": 3}.values(), fixtures.Filter(lambda x: x < 2)), 1)],