Martin v. L.: > However, I think the PEP (author) is misguided in assuming that > making byindex() a method of odict, you get better performance than > directly doing .items()[n] - which, as you say, you won't.
In Python 2.5 .items()[n] creates a whole list, and then takes one item of such list. An O(n) byindex() just scans the items to return the n-th. So while being both O(n) in time, the .items()[n] may allocate quite more memory. Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
