On Fri, 7 Sep 2018 at 16:25, Schachner, Joseph
wrote:
>...
> Now, on to the second part: the problem you showed - that you can only loop
> through aList:print(i,j) once - is BECAUSE you hung onto it from one loop to
> another. Once the iterator is exhausted, it's exhausted.
>
> Think of
The question "If I do this "aList = enumerate(numList)", isn't it stored
permanently in aList now? I see your point to use it directly, but just in
case I do need to hang onto it from one loop to another, then how is that done?"
Reflects that you are thinking in a C++ kind of way I think.
On Thu, 06 Sep 2018 11:50:17 -0700, Viet Nguyen via Python-list wrote:
> If I do this "aList = enumerate(numList)", isn't it
> stored permanently in aList now?
Yes, but the question is "what is *it* that is stored? The answer is, it
isn't a list, despite the name you choose. It is an enumerate
On Thursday, September 6, 2018 at 12:12:20 PM UTC-7, David Raymond wrote:
> The actual "enumerate" object is really just holding a current index and a
> reference to the original list. So if you alter the original list while
> you're iterating through it you'll see the changes. If you want a
On Fri, Sep 7, 2018 at 4:50 AM, Viet Nguyen via Python-list
wrote:
>> Because it's not an enumerated list, it's an enumerated iterator.
>> Generally, you'll just use that directly in the loop:
>>
>> for i, value in enumerate(numbers):
>>
>> There's generally no need to hang onto it from one loop
The actual "enumerate" object is really just holding a current index and a
reference to the original list. So if you alter the original list while you're
iterating through it you'll see the changes. If you want a full copy then you
can just wrap it with list()
Python 3.7.0 (v3.7.0:1bf9cc5093,
On Thursday, September 6, 2018 at 10:34:19 AM UTC-7, Chris Angelico wrote:
> On Fri, Sep 7, 2018 at 3:26 AM, Viet Nguyen via Python-list
> wrote:
> numList
> > [2, 7, 22, 30, 1, 8]
> >
> aList = enumerate(numList)
> >
> for i,j in aList:print(i,j)
> >
> > 0 2
> > 1 7
> > 2 22
> > 3
On Fri, Sep 7, 2018 at 3:26 AM, Viet Nguyen via Python-list
wrote:
numList
> [2, 7, 22, 30, 1, 8]
>
aList = enumerate(numList)
>
for i,j in aList:print(i,j)
>
> 0 2
> 1 7
> 2 22
> 3 30
> 4 1
> 5 8
>
for i,j in aList:print(i,j)
>
Because it's not an enumerated list, it's
