fix red_black_tree.py

TheAlgorithms · lighting9999 · Jul 5, 2025 · Jul 5, 2025 · Jul 5, 2025 · Jul 5, 2025
commit fbd72d9c848ddcf5375003652ea337ad58f0ebe9
diff --git a/data_structures/binary_tree/red_black_tree.py b/data_structures/binary_tree/red_black_tree.py
@@ -1,8 +1,8 @@
 from __future__ import annotations
 
-import doctest
+
 from collections.abc import Iterator
 from pprint import pformat
 

 class RedBlackTree:
@@ -862,7 +862,7 @@
     """
     >>> pytests()
     """
-
+    import doctest
     failures, _ = doctest.testmod()
     if failures == 0:
         print("All doctests passed!")