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-rw-r--r--Doc/library/tokenize.rst9
1 files changed, 9 insertions, 0 deletions
diff --git a/Doc/library/tokenize.rst b/Doc/library/tokenize.rst
index 41222a7..bffe930 100644
--- a/Doc/library/tokenize.rst
+++ b/Doc/library/tokenize.rst
@@ -22,6 +22,15 @@ the generic :data:`~token.OP` token type. The exact
type can be determined by checking the ``exact_type`` property on the
:term:`named tuple` returned from :func:`tokenize.tokenize`.
+
+.. warning::
+
+ Note that the functions in this module are only designed to parse
+ syntactically valid Python code (code that does not raise when parsed
+ using :func:`ast.parse`). The behavior of the functions in this module is
+ **undefined** when providing invalid Python code and it can change at any
+ point.
+
Tokenizing Input
----------------