python3 test fix
python3 test fix

qitianchan/flaskbb,SeanChen0617/flaskbb-1,zky001/flaskbb,realityone/flaskbb,China-jp/flaskbb,SeanChen0617/flaskbb,SeanChen0617/flaskbb,lucius-feng/flaskbb,dromanow/flaskbb,SeanChen0617/flaskbb-1,lucius-feng/flaskbb,SeanChen0617/flaskbb,emile2016/flaskbb,dromanow/flaskbb,emile2016/flaskbb,China-jp/flaskbb,emile2016/flaskbb,realityone/flaskbb,zky001/flaskbb,realityone/flaskbb,qitianchan/flaskbb,lucius-feng/flaskbb,China-jp/flaskbb,zky001/flaskbb,SeanChen0617/flaskbb-1,dromanow/flaskbb,qitianchan/flaskbb