Lie Ryan wrote:
Greg Ewing wrote:
Stefan Behnel wrote:
It would therefore be nice to have a common ".any()" method on data structures that would just read an arbitrary item from a container.
Rather than add a method to every container implementation, it would be easier to provide a function:
def first(obj): return iter(ob).next()
possibly with some embellishments to handle StopIteration, allow for a default value, etc.
Which would imply a request for last().
Not really - every iterator in Python is guaranteed to either have a first value or throw an exception when you try to retrieve it via next(). There's no such guarantee that every iterator will terminate and hence have a "last" value (cf. itertools.count). Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia ---------------------------------------------------------------