On Sun, Dec 30, 2012 at 4:10 PM, Ned Batchelder <ned@nedbatchelder.com>wrote:
I wonder at the underlying philosophy of things being accepted or rejected in this way.
I'm no expert on the subject but here are a few criteria for builtin method inclusion: * Useful - show many popular use cases, e.g. attach many links to various lines on github/stackoverflow/bitbucket. * Hard to get right, i.e. user implementations tend to have bugs. * Would benefit greatly from C optimization * Have a great, obvious, specific, readable name * Don't overlap with anything else in the stdlib - TSBOAPOOOWTDI * Consistent with the rest of python, e.g. * Community approval * BDFL approval Brett wrote a bit on stdlib inclusion which may be relevant http://mail.python.org/pipermail/python-3000/2006-June/002442.html "that way may not be obvious at first unless you're Dutch." Yuval