[Python-Dev] RFC: Add a new builtin strarray type to Python? (original) (raw)

Simon Cross hodgestar+pythondev at gmail.com
Sun Oct 2 19:27:46 CEST 2011


On Sun, Oct 2, 2011 at 7:23 PM, Simon Cross <hodgestar+pythondev at gmail.com> wrote:

I'm -1 on hacking += to be fast again because having the two loops below perform wildly differently is very surprising to me:

s = '' for x in loops:  s += x s = '' for x in loops:  s = s + x

Erk. Bad example. Second example should be:

s = '' for x in loops: b = s s += x

(I misunderstood the details but I new the reference counting hackiness would lead to surprises somewhere :).

Schiavo Simon



More information about the Python-Dev mailing list