From edf929ec9d3292aad382536655a3f526ed264331 Mon Sep 17 00:00:00 2001
From: ayanhan <64448894+ayanhan@users.noreply.github.com>
Date: Thu, 4 Dec 2025 17:53:08 +0900
Subject: [PATCH] fix: add __delitem__ to Tensor with proper TypeError (#13561)

---
 test/unit/test_indexing.py | 5 ++---
 tinygrad/tensor.py         | 3 +++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/test/unit/test_indexing.py b/test/unit/test_indexing.py
index 9fad1cd381..1b38e52190 100644
--- a/test/unit/test_indexing.py
+++ b/test/unit/test_indexing.py
@@ -176,9 +176,8 @@ class TestIndexing(unittest.TestCase):
     self.assertRaises(IndexError, lambda: reference[0.0, ..., 0.0:2.0])
     self.assertRaises(IndexError, lambda: reference[0.0, :, 0.0])
 
-    # TODO: delitem
-    # def delitem(): del reference[0]
-    # self.assertRaises(TypeError, delitem)
+    def delitem(): del reference[0]
+    self.assertRaises(TypeError, delitem)
 
   # TODO setitem backward
   '''
diff --git a/tinygrad/tensor.py b/tinygrad/tensor.py
index 64cc898975..5dfa3e9891 100644
--- a/tinygrad/tensor.py
+++ b/tinygrad/tensor.py
@@ -1257,6 +1257,9 @@ class Tensor(OpMixin):
       v = v.cast(res.dtype)._broadcast_to(_broadcast_shape(res.shape, v.shape)).contiguous()
       res.assign(v).realize()
 
+  def __delitem__(self, indices) -> None:
+    raise TypeError("Tensor does not support deleting items")
+
   def gather(self:Tensor, dim:int, index:Tensor) -> Tensor:
     """
     Gathers values along an axis specified by `dim`.