Ed Singleton wrote: > On 27/10/05, Kent Johnson <[EMAIL PROTECTED]> wrote: > >>Ed Singleton wrote: >>>Can I pass a block of code that will be executed within the function's >>>scope? >> >>Yes, you can define a function within traverse() and pass that function to >>things_to_do(), but I don't know how that will help. > > > I was thinking more of something I think I read in Ruby where you can > pass a block of code to a function and it will perform the block of > code at each iteration, and you can operate within the scope of the > function. (I think they were actually called blocks or something).
Ruby has code blocks which are passed to a function. They are widely used in Ruby. The closest equivalent in Python 2.4 is to pass a function to the other function. This has much the same capabilities as Ruby blocks but not as natural a syntax. There is a proposal to add a similar capability to Python but it has not been finalized - see PEP 343: http://www.python.org/peps/pep-0343.html Kent -- http://www.kentsjohnson.com _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
