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Closes #22525: clarify documentation for ast.literal_eval().

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Georg Brandl 2014-11-05 20:20:28 +01:00
parent b811a97859
commit b9b389efed
1 changed files with 8 additions and 6 deletions
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Doc/library/ast.rst
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@ -115,13 +115,15 @@ and classes for traversing abstract syntax trees:
.. function:: literal_eval(node_or_string)
Safely evaluate an expression node or a string containing a Python
expression. The string or node provided may only consist of the following
Python literal structures: strings, bytes, numbers, tuples, lists, dicts,
sets, booleans, and ``None``.
Safely evaluate an expression node or a string containing a Python literal or
container display. The string or node provided may only consist of the
following Python literal structures: strings, bytes, numbers, tuples, lists,
dicts, sets, booleans, and ``None``.
This can be used for safely evaluating strings containing Python expressions
from untrusted sources without the need to parse the values oneself.
This can be used for safely evaluating strings containing Python values from
untrusted sources without the need to parse the values oneself. It is not
capable of evaluating arbitrarily complex expressions, for example involving
operators or indexing.
.. versionchanged:: 3.2
Now allows bytes and set literals.