Am 16.01.2014 12:39, schrieb Antoine Pitrou:
On Thu, 16 Jan 2014 04:42:43 -0500 Terry Reedy <tjreedy@udel.edu> wrote:
On 1/16/2014 3:31 AM, Serhiy Storchaka wrote:
16.01.14 08:05, Guido van Rossum написав(ла):
In this specific case it's clear to me that the special-casing of negative count is intentional -- presumably it emulates sequence repetition, where e.g. 'a'*-1 == ''.
In this specific case it's contrary to sequence repetition. Because repeat('a', -1) repeats 'a' forever.
'Forever' only when the keyword is used and the value is -1. In 3.4b2
itertools.repeat('a', -1) repeat('a', 0) itertools.repeat('a', times=-1) repeat('a') itertools.repeat('a', times=-2) repeat('a', -2)
Looks like a horrible bug to me. Passing an argument by position should mean the same as passing it by keyword!
Indeed, that should be fixed regardless of AC. Georg