[Python-ideas] 回复: Columnize in module "cmd"

MRAB python at mrabarnett.plus.com
Tue Dec 20 23:30:51 EST 2011


On 21/12/2011 03:28, Tom Zhou wrote:
> Thanks a lot for your reply!
> I've reservations, maybe code looks like:
> """
> colwidth = max(map(len, list))
> ncols = displaywidth/(colwidth+2)+1
> nrows = size/ncols+1
> for nrows
>      for ncols
>           texts = list[...]
>           output texts
> """
> is clear, and just waste some space of stdout.
>
A couple of points:

1. Trying not to use the names of built-in classes or functions for
your variable names, for example "list".

2. In Python 2 int/int returns an int, but in Python 3 int/int returns
a float. In both cases int//int returns an int (at least for recent
versions of Python 2), so it's a good idea to always use // when you
want to do integer division.



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