1 files changed, 14 insertions, 0 deletions
diff --git a/Lib/sqlite3/__init__.py b/Lib/sqlite3/__init__.py
index 6c91df27cca..f001c0678e1 100644
--- a/Lib/sqlite3/__init__.py
+++ b/Lib/sqlite3/__init__.py
@@ -21,3 +21,17 @@
 # 3. This notice may not be removed or altered from any source distribution.
 
 from sqlite3.dbapi2 import *
+
+
+# bpo-42264: OptimizedUnicode was deprecated in Python 3.10.  It's scheduled
+# for removal in Python 3.12.
+def __getattr__(name):
+    if name == "OptimizedUnicode":
+        import warnings
+        msg = ("""
+            OptimizedUnicode is deprecated and will be removed in Python 3.12.
+            Since Python 3.3 it has simply been an alias for 'str'.
+        """)
+        warnings.warn(msg, DeprecationWarning, stacklevel=2)
+        return str
+    raise AttributeError(f"module 'sqlite3' has no attribute '{name}'")