[issue39159] Ideas for making ast.literal_eval() usable

[Batuhan Taskaya]

Batuhan Taskaya <batuhanosmantaskaya at gmail.com> added the comment:

> 1) We should document possible exceptions that need to be caught.  So far, I've found TypeError, MemoryError, SyntaxError, ValueError.

Also, an addition to these errors is RecursionError
>>> t = ast.Tuple(elts=[], ctx=ast.Load())
>>> t.elts.append(t)
>>> ast.literal_eval(t)

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.9/ast.py", line 101, in literal_eval
    return _convert(node_or_string)
  File "/usr/local/lib/python3.9/ast.py", line 81, in _convert
    return tuple(map(_convert, node.elts))
  File "/usr/local/lib/python3.9/ast.py", line 81, in _convert
    return tuple(map(_convert, node.elts))
  File "/usr/local/lib/python3.9/ast.py", line 81, in _convert
    return tuple(map(_convert, node.elts))
  [Previous line repeated 496 more times]
RecursionError: maximum recursion depth exceeded

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39159>
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