On 03/06/2013 09:05 PM, DoanVietTrungAtGmail wrote:
Once a csv file has been read by a csv reader (such as DictReader), it's
no longer a csv file.
That was an "Aha!" moment for me. The file is on disk, each row of it is in
memory as a list or dict, and it's the list or dict that matters. It's
> Once a csv file has been read by a csv reader (such as DictReader), it's
> no longer a csv file.
That was an "Aha!" moment for me. The file is on disk, each row of it is in
memory as a list or dict, and it's the list or dict that matters. It's so
obvious now. Thanks Dave.
>
a namedtuple is pr
On 05/03/13 00:24, Dave Angel wrote:
import array
myarray = array.array('b', mylist)
An array is somewhat slower than a list,
I think that it's true that using a list *can* be faster, but that's only
because we're comparing apples with oranges. Arrays do more work than lists.
For example, u
On 03/04/2013 01:48 AM, DoanVietTrungAtGmail wrote:
Don, Dave - Thanks for your help!
Don: Thanks! I've just browsed the AST documentation, much of it goes over
my head, but the ast.literal_eval helper function works beautifully for me.
Dave: Again, thanks! Also, you asked "More space efficient
On 04/03/13 17:48, DoanVietTrungAtGmail wrote:
Don, Dave - Thanks for your help!
Don: Thanks! I've just browsed the AST documentation, much of it goes over
my head, but the ast.literal_eval helper function works beautifully for me.
Dave: Again, thanks! Also, you asked "More space efficient than
Don, Dave - Thanks for your help!
Don: Thanks! I've just browsed the AST documentation, much of it goes over
my head, but the ast.literal_eval helper function works beautifully for me.
Dave: Again, thanks! Also, you asked "More space efficient than what?" I
meant .csv versus dict, list, and objec
On 03/03/2013 09:24 PM, DoanVietTrungAtGmail wrote:
Dear tutors
I am checking out csv as a possible data structure for my records. In each
record, some fields are an integer and some are a list of integers of
variable length. I use csv.DictWriter to write data. When reading out using
csv.DictRea
On Mar 3, 2013, at 9:24 PM, DoanVietTrungAtGmail wrote:
> Dear tutors
>
> I am checking out csv as a possible data structure for my records. In each
> record, some fields are an integer and some are a list of integers of
> variable length. I use csv.DictWriter to write data. When reading out u
