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-rw-r--r--Doc/whatsnew/3.12.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.12.rst b/Doc/whatsnew/3.12.rst
index f1c3f08..bfbc6c7 100644
--- a/Doc/whatsnew/3.12.rst
+++ b/Doc/whatsnew/3.12.rst
@@ -1499,6 +1499,9 @@ Changes in the Python API
* Some incomplete or invalid Python code now raises :exc:`tokenize.TokenError` instead of
returning arbitrary ``ERRORTOKEN`` tokens when tokenizing it.
+ * Mixing tabs and spaces as indentation in the same file is not supported anymore and will
+ raise a :exc:`TabError`.
+
Build Changes
=============