open api를 통한 정보 조회 기능 추가

+def errors(err_code):
+    err_dict={0:('OP_ERR_NONE','정상처리'),
+              -10:('OP_ERR_FAIL','실패'),
+              -100:('OP_ERR_LOGIN','사용자정보교환실패'),
+              -101:('OP_ERR_CONNECT','서버접속실패'),
+              -102:('OP_ERR_VERSION','버전처리실패'),
+              -103:('OP_ERR_FAIRWALL','개인방화벽실패'),
+              -104:('OP_ERR_MEMORY','메모리보호실패'),
+              -105:('OP_ERR_INPUT','함수입력값오류'),
+              -106:('OP_ERR_SOCKET_CLOSED','통신연결종료'),
+              -200:('OP_ERR_SISE_OVERFLOW','시세조회과부화'),
+              -201:('OP_ERR_RQ_STRUCT_FAIL','전문작성초기화실패'),
+              -202:('OP_ERR_RQ_STRING_FAIL','전문작성입력값오류'),
+              -203:('OP_ERR_NO_DATA','데이터없음'),
+              -204:('OP_ERR_OVER_MAX_DATA','조회가능한종목수초과'),
+              -205:('OP_ERR_DATA_RCV_FAIL','데이터수신실패'),
+              -206:('OP_ERR_OVER_MAX_FID','조회가능한FID수초과'),
+              -207:('OP_ERR_REAL_CANCEL','실시간해제오류'),
+              -300:('OP_ERR_ORD_WRONG_INPUT','입력값오류'),
+              -301:('OP_ERR_ORD_WRONG_ACCNO','계좌비밀번호없음'),
+              -302:('OP_ERR_OTHER_ACC_USE','타인계좌사용오류'),
+              -303:('OP_ERR_MIS_2BILL_EXC','주문가격이20억원을초과'),
+              -304:('OP_ERR_MIS_5BILL_EXC','주문가격이50억원을초과'),
+              -305:('OP_ERR_MIS_1PER_EXC','주문수량이총발행주수의1 % 초과오류'),
+              -306:('OP_ERR_MIS_3PER_EXC','주문수량이총발행주수의3 % 초과오류'),
+              -307:('OP_ERR_SEND_FAIL','주문전송실패'),
+              -308:('OP_ERR_ORD_OVERFLOW','주문전송과부화'),
+              -309:('OP_ERR_MIS_300CNT_EXC','주문수량300계약초과'),
+              -310:('OP_ERR_MIS_500CNT_EXC','주문수량500계약초과'),
+              -340:('OP_ERR_ORD_WRONG_ACCINFO','계좌정보없음'),
+              -500:('OP_ERR_ORD_SYMCODE_EMPTY','종목코드없음')
+              }
+
+    result=err_dict[err_code]
+    return result
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