How is correct use of eval()

Hi . I read about eval(). I also read about this "bug" : cod = raw_input ('Enter:") eval (cod) if i use "rm -rf ~" all files will be deleted . What is correct way to use this function? Thank's -- http://mail.python.org/mailman/listinfo/python-list

Re: vars().has_key() question about how working .

So is not possible to testing if a variable is defined with this functions vars(), globals(), locals() ? Or maybe i make confusion with another issue. Please more specific ... Thank you 2010/4/4 Chris Rebert > On Sun, Apr 4, 2010 at 1:42 AM, catalinf...@gmail.com > wrote: > > Hi everyone . > >