Function to add commas in numbers?

[Mark McEahern]

> Is there a function that will take, for example, 1234567 and return 
> 1,234,567?

Short answer:  Look into the locale module.

Demo:

  mynum = 123456
  import locale
  locale.setlocale(locale.LC_ALL, "")
  locale.format('%.0f', mynum, 3)
  >>> '123,456'

// m
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