I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10] = 12
x[20] = 30
I'm thinking of something like defaultdict but for lists (I know
that's very different, but ... )
Thanks!
-larry
--
https
On Friday, January 3, 2014 4:19:09 PM UTC+1, larry@gmail.com wrote:
I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10] = 12
x[20] = 30
I'm thinking of something like defaultdict
On Sat, Jan 4, 2014 at 2:19 AM, Larry Martell larry.mart...@gmail.com wrote:
I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10] = 12
x[20] = 30
I'm thinking of something like defaultdict
In article mailman.4852.1388762356.18130.python-l...@python.org,
Larry Martell larry.mart...@gmail.com wrote:
I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10] = 12
x[20] = 30
Whenever you ask
On Fri, Jan 3, 2014 at 10:30 AM, eneskri...@gmail.com wrote:
On Friday, January 3, 2014 4:19:09 PM UTC+1, larry@gmail.com wrote:
I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10] = 12
x[20
On Sat, Jan 4, 2014 at 2:38 AM, Roy Smith r...@panix.com wrote:
Why do you want holes? Is the issue that you're storing sparse data and
don't want to waste memory on unused keys? If so, a dictionary should
do you fine.
Do you need to be able to read the values back out in a specific order?
On Fri, Jan 3, 2014 at 10:37 AM, Chris Angelico ros...@gmail.com wrote:
On Sat, Jan 4, 2014 at 2:19 AM, Larry Martell larry.mart...@gmail.com wrote:
I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10
On Sat, Jan 4, 2014 at 2:51 AM, Roy Smith r...@panix.com wrote:
In article mailman.4853.1388763434.18130.python-l...@python.org,
Chris Angelico ros...@gmail.com wrote:
Alternatively, if you expect to fill in most of the elements, it's
possible you'd be happier working with a subclass of list
In article mailman.4853.1388763434.18130.python-l...@python.org,
Chris Angelico ros...@gmail.com wrote:
Alternatively, if you expect to fill in most of the elements, it's
possible you'd be happier working with a subclass of list that
auto-expands by filling in the spare space with a singleton
On Sat, Jan 4, 2014 at 2:55 AM, Larry Martell larry.mart...@gmail.com wrote:
The use case is that I'm parsing a XML file like this:
Parameter Name=DefaultVersion
Values
Value
DefaultTrue/Default
/Value
/Values
On Fri, 03 Jan 2014 10:41:21 -0500, Larry Martell wrote:
The holes would be between the items I put in. In my example above, if I
assigned to [10] and [20], then the other items ([0..9] and [11..19])
would have None.
dic = { 10:6, 20:11}
dic.get(10)
6
dic.get(14)
dic.get(27,oh god there's
On Fri, Jan 3, 2014 at 1:07 PM, Denis McMahon denismfmcma...@gmail.com wrote:
On Fri, 03 Jan 2014 10:41:21 -0500, Larry Martell wrote:
The holes would be between the items I put in. In my example above, if I
assigned to [10] and [20], then the other items ([0..9] and [11..19])
would have
On Fri, Jan 3, 2014 at 11:07 AM, Chris Angelico ros...@gmail.com wrote:
On Sat, Jan 4, 2014 at 2:55 AM, Larry Martell larry.mart...@gmail.com wrote:
The use case is that I'm parsing a XML file like this:
Parameter Name=DefaultVersion
Values
Value
In article mailman.4871.1388794533.18130.python-l...@python.org,
Larry Martell larry.mart...@gmail.com wrote:
Thanks, but I know all that about dicts. I need to use a list for
compatibility with existing code.
Generalizing what I think the situation is, A dict is the best data
structure
On Sat, Jan 4, 2014 at 11:18 AM, Larry Martell larry.mart...@gmail.com wrote:
Your last suggestion is what I ended up doing, but I had to key off
the Values /Values unit - I couldn't use Value because that
isn't present for ones that have no Current - that messed me up for
hours. But it's
On Fri, 03 Jan 2014 20:18:06 -0500, Roy Smith wrote:
In article mailman.4871.1388794533.18130.python-l...@python.org,
Larry Martell larry.mart...@gmail.com wrote:
Thanks, but I know all that about dicts. I need to use a list for
compatibility with existing code.
Generalizing what I
On Fri, Jan 3, 2014 at 7:37 AM, Chris Angelico ros...@gmail.com wrote:
Depending on what exactly you need, it's probably worth just using a
dict. In what ways do you need it to function as a list? You can
always iterate over sorted(some_dict.keys()) if you need to run
through them in order.
On Sat, Jan 4, 2014 at 1:58 PM, Dan Stromberg drsali...@gmail.com wrote:
On Fri, Jan 3, 2014 at 7:37 AM, Chris Angelico ros...@gmail.com wrote:
Depending on what exactly you need, it's probably worth just using a
dict. In what ways do you need it to function as a list? You can
always iterate
On Fri, Jan 3, 2014 at 7:00 PM, Chris Angelico ros...@gmail.com wrote:
On Sat, Jan 4, 2014 at 1:58 PM, Dan Stromberg drsali...@gmail.com wrote:
On Fri, Jan 3, 2014 at 7:37 AM, Chris Angelico ros...@gmail.com wrote:
Depending on what exactly you need, it's probably worth just using a
dict. In
On Sat, Jan 4, 2014 at 2:32 PM, Dan Stromberg drsali...@gmail.com wrote:
That is fine, sorting once at then end of a script is a good use of
sorted(some_dict.keys()). However, it probably should be pointed out
that this, while similar, is not so good:
for thing in range(n):
for key in
Larry Martell larry.mart...@gmail.com wrote in message
news:CACwCsY5P47-dB1NLQTUTQ=0aF6B+-M3y4hCxcUGmcVmHM8=-x...@mail.gmail.com...
I think I know the answer is no, but is there any package that allows
creating a list with holes in it? E.g. I'd want to do something like:
x[10] = 12
x[20
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