StacktraceTop:string_concat (a=0xb7d41ac0, bb=0x889ec80) at ../Objects/stringobject.c:975 PyString_Concat (pv=0xb59c08f8, w=0x889ec80) at ../Objects/stringobject.c:4052 string_concatenate (v=0xb7d41ac0, w=0x889ec80, f=0x818cd44, next_instr=0xb7d5366e "7}\002") at ../Python/ceval.c:4304 PyEval_EvalFrameEx (f=0x818cd44, throwflag=0) at ../Python/ceval.c:1137
StacktraceTop: string_ concat (a=0xb7d41ac0, bb=0x889ec80) at ../Objects/ stringobject. c:975 stringobject. c:4052 0xb7d5366e "7}\002") at ../Python/ ceval.c: 4304 ceval.c: 1137
PyString_Concat (pv=0xb59c08f8, w=0x889ec80) at ../Objects/
string_concatenate (v=0xb7d41ac0, w=0x889ec80, f=0x818cd44, next_instr=
PyEval_EvalFrameEx (f=0x818cd44, throwflag=0) at ../Python/