why it is invalid syntax?
Stargaming
stargaming at gmail.com
Thu Nov 22 17:46:17 CET 2007
On Thu, 22 Nov 2007 03:24:48 -0800, cokofreedom wrote:
> On Nov 22, 10:58 am, "Guilherme Polo" <ggp... at gmail.com> wrote:
>> 2007/11/22, Stef Mientki <S.Mientki-nos... at mailbox.kun.nl>:
>>
>>
>>
>> > alf wrote:
>> > > Hi,
>>
>> > > I wonder why it is an invalid syntax:
>>
>> > > >>> if 1: if 1: if 1: print 1
>> > > File "<stdin>", line 1
>> > > if 1: if 1: if 1: print 1
>>
>> > > or
>>
>> > > >>> if 1: for i in range(10): print i
>> > > File "<stdin>", line 1
>> > > if 1: for i in range(10): print i
>>
>> > > I would expect one could nest :
>>
>> > Although I agree it might be quit unreadable for normal programmers,
>> > people who are used to writing math formula, (i.e. MatLab), this is
>> > not true.
>>
>> > Here another interesting one, that is accepted:
>>
>> > self.nodes.extend ( [ ONode(shape,n,self) \
>> > for n in range(shape.Parent.N_Outputs)
>> > \ if shape.Type_Outputs[n] == type ] )
>>
>> That is a list comprehension
>>
>>
>>
>> > cheers,
>> > Stef
>> > --
>> >http://mail.python.org/mailman/listinfo/python-list
>>
>> --
>> -- Guilherme H. Polo Goncalves
>
> So acceptable usage (though disgusting :P) would be
>
> while 1: print 'hello'; print 'goodbye'; exec(rm -rf *)
Nope::
exec(rm -rf *)
^
SyntaxError: invalid syntax
Even the syntactically correct ``exec("rm -rf *")`` would make your
computer explode. Should we introduce this as a shortcut to `break`? ;-)
SCNR,
stargaming
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