[Tutor] generators

[mike jackson]

I am trying understand python and have done fairly well, So for it has been easy to learn and is concise.  However I seem to not quite understand the use of a generator over a function(I am familiar with functions [other languages and math]).  To me (excepting obvious syntax differences) a generator is a function.  Why should I use a generator instead of a function or vice versa?  Is perhaps specfic uses it was created to handle?  A great web page with good examples would be nice.  Of course if you can sum it up rather easy then by all means go ahead.