In Python 3, "free variable" and "nonlocal variable" are synonym terms? Or is
there a difference, like "a free variable is a variable that is not a local
variable, then nonlocal variables and global variables are both free variables"?
Thanking you in advance,
Bartolomé Sintes
--
http://mail.pyt
Hi,
I thought that x += ... was the same than x = x + ..., but today I have
realized it is not true when operating with mutable objects.
In Python 3.3 or 2.7 IDLE (Windows) compare:
>>> a = [3]
>>> b = a
>>> a = a + [1]
>>> b
[3]
and
>>> a = [3]
>>> b = a
>>> a += [1]
>>> b
[3, 1]
Is this beha
OK. Now I understand it.
I was confused because when two list are created in two different lines, Python
gives them different ids, but when the two lists are created in the same line
(in a tuple) Python gives them the same id. It doesn't really matter as these
lists are just created and destro
In Python 3.3 for Windows, every list gets a different id when it is created:
>>> id([3])
46555784
>>> id([3])
47920192
>>> id([4])
46532048
But if I write a tuple asking for the ids of two lists, each list seems to get
the same id:
>>> id([3]), id([4])
(43079000, 43079000)
I was expecting a t
