Irmen de Jong wrote: > Terry Reedy wrote: > >>"Bruno Desthuilliers" <[EMAIL PROTECTED]> wrote in >>message news:[EMAIL PROTECTED] >> >>>Err... is it me being dumb, or is it a perfect use case for str.split ? >> >>s.partition() was invented and its design settled on as a result of looking >>at some awkward constructions in the standard library and other actual use >>cases. Sometimes it replaces s.find or s.index instead of s.split. In >>some cases, it is meant to be used within a loop. I was not involved and >>so would refer you to the pydev discussions. > > > While there is the functional aspect of the new partition method, I was > wondering about the following /technical/ aspect: > > Because the result of partition is a non mutable tuple type containing > three substrings of the original string, is it perhaps also the case > that partition works without allocating extra memory for 3 new string > objects and copying the substrings into them? > I can imagine that the tuple type returned by partition is actually > a special object that contains a few internal pointers into the > original string to point at the locations of each substring. > Although a quick type check of the result object revealed that > it was just a regular tuple type, so I don't think the above is true... > It's not.
regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC/Ltd http://www.holdenweb.com Skype: holdenweb http://holdenweb.blogspot.com Recent Ramblings http://del.icio.us/steve.holden -- http://mail.python.org/mailman/listinfo/python-list
