"boblat...@googlemail.com" <boblat...@googlemail.com> writes:
> Hello group,
>
> this is the conversion I'm looking for:
>
> ['1.1', '2.2', '3.3'] -> (1.1, 2.2, 3.3)
>
> Currently I'm "disassembling" the list by hand, like this:
>
> fields = line.split('; ')
> for x in range(len(fields)):
> fields[x] = float(fields[x])
> ftuple = tuple(fields)
>
> Of course it works, but it looks inelegant. Is there a more Pythonisch
> way of doing this?
You can create a tuple by calling the tuple type with an iterable, where
each item from the iterable becomes an element in the created tuple.
>>> tuple([4, 5, 6])
(4, 5, 6)
You can create an iterable with a generator expression:
>>> for n in (x**2 for x in range(5)):
... print n
...
0
1
4
9
16
Combine the two, creating a tuple from a generator expression:
>>> fields = ['1.1', '2.2', '3.3']
>>> record = tuple(
... float(text) for text in fields)
>>> record
(1.1000000000000001, 2.2000000000000002, 3.2999999999999998)
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Ben Finney
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