Re: [Python-ideas] data structures should have an .any() method

Sept. 4, 2009

      Jan Kaliszewski wrote:
...
04-09-2009 Nick Coghlan
<ncoghlan@gmail.com> wrote:
...
def getany(container)
  if container:
    if isinstance(container, collections.Sequence):
      return container[0]
    else:
      for x in container:
        return x
  raise ValueError("No items in container")
or simpler:
def getany(container):
        try:
            return next(iter(container))
        except StopIteration
            raise ValueError("No items in container")
or:

     def getany(container):
         for x in container:
             return x
         raise ValueError("No items in container")

I actually like that, although I find this more readable:

     def getany(container):
         for x in container:
             return x
         else:
             raise ValueError("No items in container")

Stefan

Re: [Python-ideas] data structures should have an .any() method

Stefan Behnel