human
Solve the following python programming problem given the following code:
def bin_xml_escape(arg) : 
    def repl(matchobj) : 
        i = ord (matchobj.group ()) 
        if (i <= 255) : 
            return (unicode ('#x%02X') % i) 
else : 
            return (unicode ('#x%04X') % i) 
return py.xml.raw (illegal_xml_re.sub (repl, py.xml.escape (repl))) 

    
    

    Fix the buggy line: return py.xml.raw (illegal_xml_re.sub (repl, py.xml.escape (repl)))
assistant
#Here is Python program to fix the buggy line: return py.

return py.xml.raw (illegal_xml_re.sub (repl, py.xml.escape (arg)))