Operators as functions
steven.bethard at gmail.com
Tue Dec 21 00:19:24 CET 2004
Peter Hansen wrote:
> However, none of this is considered the best approach these days,
> with the advent of list comprehensions and generator expressions.
> Here's the old approach (shown above) and the shiny new modern
> Pythonic approach (requires Python 2.4):
> >>> theList = range(10)
> >>> import operator
> >>> reduce(operator.add, map(str, theList))
> >>> ''.join(str(x) for x in theList)
Also worth noting is that the shiny new modern version is also the
$ python -m timeit -s "import operator; L = range(10000)"
"reduce(operator.add, map(str, L))"
10 loops, best of 3: 89.9 msec per loop
$ python -m timeit -s "L = range(10000)" "''.join(str(x) for x in L)"
100 loops, best of 3: 15.3 msec per loop
[run with Python 2.4 on a 2.26GHz Pentium 4]
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