How can I tell when a string is in fact a number?

[Joshua Muskovitz]

Thanks for all the timing benchmarks.  This is effectively the only response
I've seen to my "why bother with re at all?" question, when I posted a much
more readable solution which only used filter and lambda.  Also, thanks for
summarizing all of the intersting ways of solving this.  The map solution
never would have occurred to me.  Python just gets better and better!

-- josh




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