[EMAIL PROTECTED] wrote:
> This recipe fails when negative numbers are used.
>
> safe_eval('(12, -12)')
> *** Unsafe_Source_Error: Line 1. Unsupported source construct:
> compiler.ast.UnarySub
>
> But, I think it could be easily fixed for somebody who understands the
> script.
I think that somebody could be you.
> Can somebody help.
Start with
class SafeEval(object):
# ...
def visitUnarySub(self, node, **kw):
return -node.expr.value
and then add some error handling.
Peter
--
http://mail.python.org/mailman/listinfo/python-list
