nested tuples

Max Erickson maxerickson at gmail.com
Fri Sep 9 21:22:15 CEST 2005


"Luis P. Mendes" <luis_lupe2XXX at netvisaoXXX.pt> wrote in
> suppose I'm reading a csv file and want to create a tuple of all
> those rows and values, like ((row1value1, row1value2,
> row1value3),(row2value1, row2value2, row2value3),...,
> (rowNvalue1, rowNvalue2, rowNvalue3)) 
> 
> I haven't found the way to do it just using tuples.  How can I do
> it? 
> 
> Nevertheless, I can solve it like this:
> a=[]
> 
> for row in reader:
> ~   elem = (row[0],row[1],row[2])
> ~   a.append(elem)
> 
> which will result in a list of tuples: [(row1value1, row1value2,
> row1value3),(row2value1, row2value2, row2value3),...,
> (rowNvalue1, rowNvalue2, rowNvalue3)]

tuple() will consume a list.

>>> tuple([1,2,3])
(1, 2, 3)
>>> tuple([(1,2),(3,4),(5,6)])
((1, 2), (3, 4), (5, 6))


max



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