I have the following script which identifies lines in a file which I want to remove, based on an array but does not remove them.

What should I change?

sourcefile = "C:\\Python25\\PC_New.txt" 
filename2 = "C:\\Python25\\PC_reduced.txt"

offending = ["Exception","Integer","RuntimeException"]

def fixup( filename ): 
    print "fixup ", filename 
    fin = open( filename ) 
    fout = open( filename2 , "w") 
    for line in fin.readlines(): 
        for item in offending: 
                print "got one",line 
                line = line.replace( item, "MUST DELETE" ) 
                line=line.strip()
                fout.write(line)  
    fin.close() 
    fout.close() 

fixup(sourcefile)