human
Solve the following python programming problem given the following code:
def create_methods(tname, fname, cname) : 
    mname = ('%s_%s' % (ch, fname.replace ('.', '_'))) 
    def ch(fname, mname) : 
        def test_aux(self) : 
            return getattr (self, cname) (os.path.join (dirname, fname)) 
test_aux.__name__ = mname 
        return test_aux 
setattr (TestBash8, mname, ch (fname, mname)) 

    
    

    Fix the buggy line: mname = ('%s_%s' % (ch, fname.replace ('.', '_')))
assistant
#Here is Python code to fix the buggy line: mname = ('%s_%s' % (ch, fname.

mname = ('%s_%s' % (tname, fname.replace ('.', '_')))