human
Solve the following python programming problem given the following code:
def build(self, result = '9
') : 
    pi = planning.Interactive () 
    pi.out = cStringIO.StringIO () 
    if isinstance (result, BaseException) : 
        def raiser() : 
            raise result 
pi.raw_input = pi 
else : 
        pi.raw_input = (result if callable (result) else (lambda : result)) 
return pi 

    
    

    Fix the buggy line: pi.raw_input = pi
assistant
#Here is Python code to fix the buggy line: pi.

pi.raw_input = def raiser(