On Dec 12, 7:34 am, sturlamolden <[EMAIL PROTECTED]> wrote: > On 12 Des, 04:45, "Terry Reedy" <[EMAIL PROTECTED]> wrote: > > > Python 3 will have optional 'type' annotations, where 'type' includes > > abstract base classes defined by the interface (methods). So parameters > > could be annotated as a Number or Sequence, for instance, which is more > > useful often than any particular concrete type. I strongly suspect that > > someone will use the annotations for compilation, which others will use > > them just for documentation and whatever else. > > I am not sure why a new type annotation syntax was needed Python 3:
Because people care about a feature when there is @syntax. Introducing syntax in Python is also the way of standardization: not everyone creates his own informal application level annotation syntax when there is one and only one recommended way of using annotations. -- http://mail.python.org/mailman/listinfo/python-list
