From b3833ddecd2217e904c90a72f82a13ace3a348c8 Mon Sep 17 00:00:00 2001 From: Raymond Hettinger Date: Sat, 3 Jan 2009 07:46:36 +0000 Subject: Simplify one of the decimal recipes. --- Doc/library/decimal.rst | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst index 330f139..c90e9b9 100644 --- a/Doc/library/decimal.rst +++ b/Doc/library/decimal.rst @@ -1880,13 +1880,13 @@ suggest, so we trap :const:`Inexact` to signal a need for more precision: def float_to_decimal(f): "Convert a floating point number to a Decimal with no loss of information" n, d = f.as_integer_ratio() - with localcontext() as ctx: - ctx.traps[Inexact] = True - while True: - try: - return Decimal(n) / Decimal(d) - except Inexact: - ctx.prec += 1 + numerator, denominator = Decimal(n), Decimal(d) + ctx = Context(prec=60) + result = ctx.divide(numerator, denominator) + while ctx.flags[Inexact]: + ctx.prec *= 2 + result = ctx.divide(numerator, denominator) + return result .. doctest:: -- cgit v0.12