[Python-checkins] bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-16565)

[Serhiy Storchaka]

https://github.com/python/cpython/commit/dedb99acdb5bbc179872235f975248133d3fb440
commit: dedb99acdb5bbc179872235f975248133d3fb440
branch: 2.7
author: Ashley Whetter <AWhetter at users.noreply.github.com>
committer: Serhiy Storchaka <storchaka at gmail.com>
date: 2019-10-18T11:00:22+03:00
summary:

bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-16565)

(cherry picked from commit 7a7f100eb352d08938ee0f5ba59c18f56dc4a7b5)

Co-authored-by: Brett Cannon <brettcannon at users.noreply.github.com>

files:
M Doc/library/ast.rst

diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst
index 6d5855b52bcce..b04a92d33adc5 100644
--- a/Doc/library/ast.rst
+++ b/Doc/library/ast.rst
@@ -129,6 +129,11 @@ and classes for traversing abstract syntax trees:
    Parse the source into an AST node.  Equivalent to ``compile(source,
    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)
 
@@ -142,6 +147,11 @@ and classes for traversing abstract syntax trees:
    capable of evaluating arbitrarily complex expressions, for example involving
    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.
+
 
 .. function:: get_docstring(node, clean=True)