[James Y Knight]
You might be interested to know that in India, the commas don't come
every 3 digits. In india, they come every two digits, after the first
three. Thus one billion = 1,00,00,00,000. How are you gonna represent
*that* in a formatting mini-language? :)
It is not the goal to replace locale or to accomodate every
possible convention. The goal is to make a common task easier
for many users. The current, default use of the period as a decimal
point has not proven to be problem eventhough that convention is
not universal. For a thousands separator, a comma is a decent choice
that makes it easy follow-on with s.replace(',', '_') or somesuch.
This simple utility could help a lot of programmers make their output
look more professional and readable. I hope the idea doesn't get
sunk by a desire to over-parameterize and cover every possible use case.
My pocket calculators all support thousands separators but in Python,
we have to do a funky dance for even this most basic bit of formatting.
I'd like to think that in 2009 we could show a little progress beyond
C's printf() or Fortran's write() formats.
Raymond
import locale
locale.setlocale(locale.LC_ALL, 'English_United States.1252')
'English_United States.1252'
conv = locale.localeconv() # get a mapping of conventions
x = 1234567.8
locale.format("%d", x, grouping=True)
'1,234,567'
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