(a)
return Fraction(abs(a._numerator), a._denominator, _normalize=False)
abs(a)
abs(a)
abs ( a )
def __abs__(a):
        """abs(a)"""
        return Fraction(abs(a._numerator), a._denominator, _normalize=False)
def __abs__ ( a ) : return Fraction ( abs ( a . _numerator ) , a . _denominator , _normalize = False )