import phylanx

# A + B

A = phylanx.ast.identifier('A')
B = phylanx.ast.identifier('B')

expr = phylanx.ast.expression(A)
expr.append(phylanx.ast.operation(phylanx.ast.optoken.op_plus, B))

print(expr)

ast = phylanx.ast.generate_ast('A + B')
print(ast)

def visitor(ast):
    print(ast)
    return True

phylanx.ast.traverse(ast, visitor)