[Python-Dev] Usage of += on strings in loops in stdlib (original) (raw)
Christian Tismer tismer at stackless.com
Wed Feb 13 14:30:21 CET 2013
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On 13.02.13 14:17, Daniel Holth wrote:
On Wed, Feb 13, 2013 at 7:10 AM, Serhiy Storchaka <storchaka at gmail.com_ _<mailto:storchaka at gmail.com>> wrote:
On 13.02.13 10:52, Larry Hastings wrote: I've always hated the "".join(array) idiom for "fast" string concatenation--it's ugly and it flies in the face of TOOWTDI. I think everyone should use "x = a + b + c + d" for string concatenation, and we should just make that fast.
I prefer "x = '%s%s%s%s' % (a, b, c, d)" when string's number is more than 3 and some of them are literal strings. Fixed: x = ('%s' * len(abcd)) % abcd
Which becomes in the new formatting style
x = ('{}' * len(abcd)).format(*abcd)hmm, hmm, not soo nice
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