fixed bug 60695

Author: Anurag-Varma

pandas/core/indexes/multi.py

@@ -9,6 +9,7 @@
     Sequence,
 )
 from functools import wraps
+from itertools import zip_longest
 from sys import getsizeof
 from typing import (
     TYPE_CHECKING,
@@ -591,7 +592,7 @@ def from_tuples(
         elif isinstance(tuples, list):
             arrays = list(lib.to_object_array_tuples(tuples).T)
         else:
-            arrs = zip(*tuples)
+            arrs = zip_longest(*tuples, fillvalue=np.nan)
             arrays = cast(list[Sequence[Hashable]], arrs)
 
         return cls.from_arrays(arrays, sortorder=sortorder, names=names)

pandas/tests/indexes/multi/test_constructors.py

@@ -410,6 +410,28 @@ def test_from_tuples_with_tuple_label():
     tm.assert_frame_equal(expected, result)
 
 
+@pytest.mark.parametrize(
+    "keys, expected",
+    (
+        ((("l1",), ("l1", "l2")), (("l1", np.nan), ("l1", "l2"))),
+        (
+            (
+                (
+                    "l1",
+                    "l2",
+                ),
+                ("l1",),
+            ),
+            (("l1", "l2"), ("l1", np.nan)),
+        ),
+    ),
+)
+def test_from_tuples_with_various_tuple_lengths(keys, expected):
+    # GH 60695
+    idx = MultiIndex.from_tuples(keys)
+    assert tuple(idx) == expected
+
+
 # ----------------------------------------------------------------------------
 # from_product
 # ----------------------------------------------------------------------------