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Conversion of number string to float in django

from fractions import Fraction


def number_str_to_float(amount_str):
    """
    Take in an amount string to return float (if possible).

    Valid string returns:
    Float
    Boolean -> True

    Invalid string Returns
    Original String
    Boolean -> False

    Examples:
    1 1/2 -> 1.5, True
    32 -> 32.0, True
    Abc -> Abc, False
    """
    success = False
    number_as_float = amount_str
    try:
        number_as_float = round(float(sum(Fraction(s)
                                for s in f"{amount_str}".split())), 2)
    except:
        pass
    if isinstance(number_as_float, float):
        success = True
    return number_as_float, success

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Conversion of number string to float in django

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