Xavier Ho wrote:
On Thu, Oct 15, 2009 at 6:39 PM, Chris Rebert <c...@rebertia.com> wrote:
Nanjundi meant "index method" as in "a method .index()" (i.e. a method
named "index") which searches through the container for the given item
and returns the index of the first instance of said item, like
list.index() does.
Interesting interpretation.. but I just gave it a try.
a = (1,2,3,4)
a
(1, 2, 3, 4)
a.index(3)
2
a.index(5)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: tuple.index(x): x not in tuple
So my Python is saying that tuples do implement .index() method. What gives?
It was added relatively recently, around Python 2.6 I think,
at least partly as an oh-ok-then reaction to everyone asking:
"how come lists have .index and .count and tuples don't?"
and neverending "tuples-are-immutable-lists-no-they-aren't-yes-they-are"
debate.
TJG
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