itertools.groupby

[Steve Howell]

--- 7stud <bbxx789_05ss at yahoo.com> wrote:
> 
> I'd settle for a simple explanation of what it does
> in python.
> 

The groupby function prevents you have from having to
write awkward (and possibly broken) code like this:

    group = []
    lastKey = None
    for item in items:
        newKey = item.key()
        if newKey == lastKey:
            group.append(word)
        elif group:
            doSomething(group)
            group = []
        lastKey = newKey
    if group:
        doSomething(group)

See my other reply for what it actually does in a
simple example.


       
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