[Python-ideas] List Revolution

[Devin Jeanpierre]

> Damn dollar signs.
> if not re.compile('^[\d\+\*\(\)]+$').match(name): return AttributeError

'(2**1024)**(2**1024)' etc.

Devin

On Sat, Sep 10, 2011 at 1:05 PM, Massimo Di Pierro
<massimo.dipierro at gmail.com> wrote:
> LOL.
>
> Damn dollar signs.
> if not re.compile('^[\d\+\*\(\)]+$').match(name): return AttributeError
>
> On Sep 10, 2011, at 11:45 AM, Stefan Behnel wrote:
>
>> Massimo Di Pierro, 10.09.2011 18:35:
>>> [...]
>>>         if not re.compile('[\d\+\*\(\)]+').match(name): return AttributeError
>>> [...]
>>> I would like to stress that the use of eval in this case is safe as the expression is first validated against a regex.
>>
>> Nice try. And it would even be ok if you had assured that the *entire* expression was validated against the regex.
>>
>> Stefan
>>
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