BooleanPolynomialRing in standalone python script

[Prakash Dey]

Hii All,

I am facing the following problem--------------

The following works fine in sage terminal

sage: R.<a,b,c>=BooleanPolynomialRing(3)
sage: (a+b+c)*(a+b)
a*c + a + b*c + b

but when i want to run the file test.sage
#/usr/bin/sage -python
R.<a,b,c>=BooleanPolynomialRing(3)
print (a+b+c)*(a+b)

the following error message is generated

 File "./pbr.sage", line 5
    R.<x, y, z>=BooleanPolynomialRing(3)
      ^
SyntaxError: invalid syntax

what i am doing wrong?

[Nils Bruin]

On Sunday, March 16, 2014 10:14:43 PM UTC-7, Prakash Dey wrote:

but when i want to run the file test.sage
#/usr/bin/sage -python
R.<a,b,c>=BooleanPolynomialRing(3)
print (a+b+c)*(a+b)

Don't put the "-python" there. You want this file to be run through sage's preprocessor. So keep the ".sage" extension to the file and make the header
#/usr/bin/sage