sql语句中的花括号加了一个单引号

diaryCandidateSet.py

@@ -30,7 +30,7 @@ def get_eachCityDiaryTop2000():
     allCitiesTop2000 = get_allCitiesDiaryTop2000()
     for i in cityList:
         sql = "select city_id,cid from data_feed_click " \
-              "where cid_type = 'diary' and city_id = {0} " \
+              "where cid_type = 'diary' and city_id = '{0}' " \
               "order by click_count_choice desc limit 2000".format(i)
         data = con_sql(sql)
         data = data.rename(columns={0:"city_id",1:"cid"})