I'm trying to find some code that will turn: 100 -> 100 1000 -> 1,000 1000000 -> 1,000,000 -1000 -> -1,000
I know that can be done using a regular expression. In Perl I would do
something like:
sub thousand {
$number = reverse $_[0];
$number =~ s/(\d\d\d)(?=\d)(?!d*\.)/$1,/g;
return scalar reverse $number;
}
But I cannot find how to do this in Python.
Thanks,
Ewan
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