code: def print_single_instruction_callback(self, address, size, branch_delay_insn,
          insn_type, target, target2, disassembly):
          
          print "0x%X SZ=%d BD=%d IT=%d\t%s" % \
              (address, size, branch_delay_insn, insn_type, disassembly)
  
          return PYBFD_DISASM_CONTINUE
docs: Callack on each disassembled instruction to print its information.