June 25, 2009
7:57 p.m.
Kristján Valur Jónsson wrote:
-----Original Message-----
The idea is for example to speed up the initialization of lists (and subclasses of lists) from other lists when the source list's contents is to be discarded.
Which is why 'swap' is confusing. You want to swap list-body pointers, which is meaningless in Python itself. Nick's 'fromlist' is better. It describes the effect without reference to the backstage magic.