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homogeneous (chars or numbers).  In that case, the already built and
super speedy Numeric extension may already do everything you need for
efficiency.

What kinds of processing do you want to do on the data?  With care, it
is possible to handle lists very efficiently with list and dict
built-ins or some widely available extensions like Numeric and
lots-o-others.

    paul> please help me . I have to finish this assignment by this
    paul> month.

More info required.

JDH