[Tutor] file-like object

[Alan Gauld]

> class _macroString(object):
>     def __init__(self,s):
>         self.macro=s
>         self.list=self.macro.split("\n")
>         for n,v in enumerate(self.list):
>             self.list[n]=v+'\n'
>     def readline(self,n=[-1]):
>         n[0]+=1
>         return self.list[n[0]]

Why not just create a current pointer as a clas attribute?
Increment or reset as required. after all maintaining 
object state is what classes and objects are for!

HTH,

Alan G.