human
Solve the following python programming problem given the following code:
def test_create(self) : 
    def callback(message) : 
        pass 
try : 
        s = SerialDataSource (callback = s) 
except DataSourceError as e : 
        pass 

    
    

    Fix the buggy line: s = SerialDataSource (callback = s)
assistant
#Here is Python program to fix the buggy line: s = SerialDataSource (callback = s)
.

s = SerialDataSource (callback = callback)