(self)
return not self.factors
>>> from sympy.core.exprtools import Factors
        >>> Factors(1).is_one
        True
>>> from sympy.core.exprtools import Factors
        >>> Factors(1).is_one
        True
>>> from sympy . core . exprtools import Factors >>> Factors ( 1 ) . is_one True
def is_one(self):  # Factors
        """
        >>> from sympy.core.exprtools import Factors
        >>> Factors(1).is_one
        True
        """
        return not self.factors
def is_one ( self ) : # Factors return not self . factors