Thanks for the examples and references everyone.

I should clarify though that I was simply looking for a *built-in*
feature rather than a function or a list-comprehension. I know these
last two works and I currently use a list comprehension.

# Example:
> >> flatten( [ 1, 3, 4, ('allo', 'bonjour', 'salut' ), 34, False,
False, ( 3, ) ]
[ 1, 3, 4, 'allo', 'bonjour', 'salut' , 34, False, False, 3 ]


Cheers!
Bernard
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