Localized digits (re)
Another one like [980](http://www.djangosnippets.org/snippets/980/), but using re's instead. I haven't benchmarked these, but my guess is that [981](http://www.djangosnippets.org/snippets/981/) is faster for strings of pure digits and this is faster for larger chunks of text that happen to contain digits. If you're generating the numbers yourself, I'd just use 981 on a number right when you generate it.
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