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bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-6041)

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(cherry picked from commit 7a7f100eb3)

Co-authored-by: Brett Cannon <brettcannon@users.noreply.github.com>
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Miss Islington (bot) 2018-03-09 12:35:42 -08:00 • committed by Brett Cannon
parent 3c39beb65d
commit f2fffd41b4
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10
Doc/library/ast.rst
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@ -113,6 +113,11 @@ and classes for traversing abstract syntax trees:
Parse the source into an AST node. Equivalent to ``compile(source, Parse the source into an AST node. Equivalent to ``compile(source,
filename, mode, ast.PyCF_ONLY_AST)``. filename, mode, ast.PyCF_ONLY_AST)``.
.. warning::
It is possible to crash the Python interpreter with a
sufficiently large/complex string due to stack depth limitations
in Python's AST compiler.
.. function:: literal_eval(node_or_string) .. function:: literal_eval(node_or_string)
@ -126,6 +131,11 @@ and classes for traversing abstract syntax trees:
capable of evaluating arbitrarily complex expressions, for example involving capable of evaluating arbitrarily complex expressions, for example involving
operators or indexing. operators or indexing.
.. warning::
It is possible to crash the Python interpreter with a
sufficiently large/complex string due to stack depth limitations
in Python's AST compiler.
.. versionchanged:: 3.2 .. versionchanged:: 3.2
Now allows bytes and set literals. Now allows bytes and set literals.