Gordon McMillan wrote:
Offhand I can't think of a built-in that can't be expressed in normal Python notation, where "optional" args are really defaulted args.
I can define the pop I want in Python as follows: _marker=[] class list: ... def pop(index=-1, default=marker): try: v=self[index] except IndexError: if default is not marker: return default if self: m='pop index out of range' else: m='pop from empty list' raise IndexError, m del self[index] return v Although I'm not sure why the "pythonicity" of an interface should depend on it's implementation. Jim -- Jim Fulton mailto:jim@digicool.com Python Powered! Technical Director (888) 344-4332 http://www.python.org Digital Creations http://www.digicool.com http://www.zope.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.