En Mon, 04 Jan 2010 04:58:54 -0300, Chris Rebert <c...@rebertia.com>
escribió:
On Sun, Jan 3, 2010 at 11:51 PM, Gabriel Genellina
<gagsl-...@yahoo.com.ar> wrote:
py> [1,2,3] + (4,5)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: can only concatenate list (not "tuple") to list
Sorry, I inadvertedly posted an incomplete message. Note the last part:
In-place addition += does work:
py> a = [1,2,3]
py> a += (4,5)
py> a
[1, 2, 3, 4, 5]
Given that tuples are sometimes used as a poor man's object (i.e.
collection of data fields), whereas lists are not typically used that
way, I'd say it's probably a good thing an explicit type conversion is
required here.
In that case += should not be allowed either...
--
Gabriel Genellina
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