steve at holdenweb.com
Thu Sep 29 23:03:22 CEST 2005
Mike Meyer wrote:
> In <433C473B.9050901 at grads.ece.mcmaster.ca>, M.N.A.Smadi <smadim2 at grads.ece.mcmaster.ca> typed:
>>This has nothing to do with how the argument is passed. It is prob
>>something wrong with str.pop in my python because when i run python and type
>>x = '1 2 3'
>>i get the following error
>>Traceback (most recent call last):
>> File "<stdin>", line 1, in ?
>>AttributeError: 'str' object has no attribute 'pop'
> The only thing wrong with str.pop is that you're trying to invoke
> it. The interpreter is telling you that string doesn't *have* a pop
> method. The interpreter is right. Strings are immutable, so "pop"
> doesn't make any sense for them.
Just to hammer the point home:
Python 2.4.1 (#1, May 27 2005, 18:02:40)
[GCC 3.3.3 (cygwin special)] on cygwin
Type "help", "copyright", "credits" or "license" for more information.
>>> x = '1 2 3'
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: 'str' object has no attribute 'pop'
>>> x = [1, 2, 3]
So if you genuinely have a string containing the values, split it onto a
list first using something like
x = x.split()
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