> - Extended slice notation for all built-in sequences. Wasn't Raymond
> Hettinger working on this?
Yes!
> Anything else?
Perhaps an iterator tools module featuring goodies from SML and Haskell:
import itertools
ia = itertools.iter(open('readme.txt'))
ia[4] # nth / index
ia[0] # first
ia[-1] # last
ia[:10] # tail / drop
ia[5:] # head / take
ia[0,100,2] # slicing
ia.enumerate(countfrom=0)
ia.filter(pred) # takewhile
ia.invfilter(pred) # dropwhile
ia.map(func)
ia.starmap(func) # [yield func(*args) for args in ia]
ia.cycle() # repeats the seqn infinitely (requires aux mem)
ia.unzip() # creates multiple iters from one
ia.tabulate(func, countFrom=0) # sml: f[0], f[1], ... = ia.map(func,
xrange(countFrom,sys.maxint))
itertools.repeat(obj) # while 1: yield obj
itertools.zip(i1, i2, i3, ...)
Raymond Hettinger
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