(self, *gens, **args)
Converts ``self`` to a polynomial or returns ``None``.

           >>> from sympy import sin
           >>> from sympy.abc import x, y

           >>> print((x**2 + x*y).as_poly())
           Poly(x**2 + x*y, x, y, domain='ZZ')

           >>> print((x**2 + x*y).as_poly(x, y))
           Poly(x**2 + x*y, x, y, domain='ZZ')

           >>> print((x**2 + sin(y)).as_poly(x, y))
           None
Converts ``self`` to a polynomial or returns ``None``.
Converts self to a polynomial or returns None .
def as_poly(self, *gens, **args):
        """Converts ``self`` to a polynomial or returns ``None``.

           >>> from sympy import sin
           >>> from sympy.abc import x, y

           >>> print((x**2 + x*y).as_poly())
           Poly(x**2 + x*y, x, y, domain='ZZ')

           >>> print((x**2 + x*y).as_poly(x, y))
           Poly(x**2 + x*y, x, y, domain='ZZ')

           >>> print((x**2 + sin(y)).as_poly(x, y))
           None

        """
        from sympy.polys import Poly, PolynomialError

        try:
            poly = Poly(self, *gens, **args)

            if not poly.is_Poly:
                return None
            else:
                return poly
        except PolynomialError:
            return None
def as_poly ( self , * gens , * * args ) : from sympy . polys import Poly , PolynomialError try : poly = Poly ( self , * gens , * * args ) if not poly . is_Poly : return None else : return poly except PolynomialError : return None