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Comment by jessaustin | Hacker News Reader

Here is the Decimal type which does not have this float problem.

Are you sure?

  >>> Decimal(0.1)
  Decimal('0.1000000000000000055511151231257827021181583404541015625')

use Decimal('0.1'), otherwise you will first generate a floating point number (with accuracy loss) and the convert it to a decimal.

It does not if you pass the string representation of the float you're working on. Like BigDecimal in Java.