converting string to dict ?

[Michael Hudson]

"Andrew Dalke" <dalke at acm.org> writes:

> /F wrote:
> >>>> eval("{'name': 'Cleopatra'}", {"__builtins__": {}})
> >{'name': 'Cleopatra'}
> >
> >the __builtins__ stuff is optional, but provides some protection
> >from evil data providers:
> 
> Note that it isn't full protection.  Consider
> 
>   eval("[0] * (2 ** 31)")

Nah.

>>> eval("[0] * (2 ** 31)")
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "<string>", line 0, in ?
OverflowError: integer exponentiation
>>> eval("[0] * (2 ** 30)")
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "<string>", line 0, in ?
MemoryError

eval("[0] * (2 ** 25)") seems to be about right for my machine (not
that I let it finish).

Cheers,
M.

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