On Sunday, 25 March 2012 18:21:23 UTC+8, Vincent Knight wrote:
>
> Hi all,
>
> I've had trouble with this for a while.
>
> If I write the following in to a notebook cell:
>
> ------
> import csv
>
> output=csv.writer(open('test.csv','wb'))
>
> data=[[1,2],[3,4],[5,6]]
>
> for r in data:
> output.writerow(r)
>
> -----
>
Perhaps you should close() what what was open() ? I.e.
o= open('test.csv','wb')
output=csv.writer(o)
# do the stuff....
o.close()
>
> and evaluate, a hyperlink appears entitled 'test.csv', if I open that csv
> file it is empy. Checking the code in bash mode in sage (and python) does
> however work (and create the required csv file).
>
> Am I missing something to do with the notebook?
>
> Thanks,
> Vince
>
> PS I've tried this on the notebook running on my machine and sagenb as
> well...
>
> --
> Dr Vincent Knight
> Cardiff School of Mathematics
> Senghennydd Road,
> Cardiff
> CF24 4AG
> (+44) 29 2087 5548
> www.vincent-knight.com
> @drvinceknight <http://twitter.com/#!/drvinceknight>
> Skype: drvinceknight
>
>
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