rounding-up numbers within a tuple

Question

Is there anyway I could round-up numbers within a tuple to two decimal points, from this:

(\'string 1\', 1234.55555, 5.66666, \'string2\')

Answer 1

To avoid issues with floating-point rounding errors, you can use decimal.Decimal objects:

"""
>>> rounded_tuple(('string 1', 1234.55555, 5.66666, 'string2'))
('string 1', Decimal('1234.56'), Decimal('5.67'), 'string2')
"""
from decimal import Decimal
def round_if_float(value):
    if isinstance(value, float):
        return Decimal(str(value)).quantize(Decimal('1.00'))
    else:
        return value

def rounded_tuple(tup):
    return tuple(round_if_float(value) for value in tup)

rounded_tuple uses a generator expression inside a call to tuple.