On Monday, December 8, 2014 3:52:53 AM UTC+5:30, Terry Reedy wrote:
> On 12/7/2014 10:28 AM, Ivan Evstegneev wrote:
> > Hi Shiyao,
> >
> > Now I see, that it was kind of dumb question...
> >
> > x = ([1, 2], [3, 4], [5, 6])
> > L = []
> [L.extend(i) for i in x]
> > [None, None, None]
>
On 12/7/2014 10:28 AM, Ivan Evstegneev wrote:
Hi Shiyao,
Now I see, that it was kind of dumb question...
x = ([1, 2], [3, 4], [5, 6])
L = []
[L.extend(i) for i in x]
[None, None, None]
Using a list comprehension for the expression side-effect, when you do
not actually want the list produc
age-
From: Shiyao Ma [mailto:i...@introo.me]
Sent: Sunday, December 7, 2014 17:18
To: Ivan Evstegneev
Cc: python-list@python.org
Subject: Re: Tuple of lists concatenation - function vs comprehension
On 12/07, Ivan Evstegneev wrote:
> Hello,
>
> When I have worked in Python shell (IDL
On 12/07, Ivan Evstegneev wrote:
> Hello,
>
> When I have worked in Python shell (IDLE) I found this issue:
>
> >>>x = ([1, 2], [3, 4], [5, 6])
> >>>L = []
> >>>for I in x:
> L.extend(i)
>
> >>>L
> [1,2,3,4,5,6]
>
> But when I try to make comprehension using above expression, I get this:
>
>
