import psycopg2

conn = psycopg2.connect(database="postgres", user="postgres", password="123456", host="127.0.0.1", port="5432")
cur = conn.cursor()
list = ['寶雞新聞','地方政策','一帶一路','十三五規劃','高層講話','智慧城市','招商引資','巨集觀經濟環境','高科技產業','工業製造與工業4.0','網際網路+','行業新聞']

for i in list:
    cur.execute("SELECT id from bjzs_big_data.baoji_catalog where name = '{}'".format(i))
    rows = cur.fetchall()
    print(rows)   #[(11,)]讀到的是這樣
    print(rows[0][0])   #11  讀到的是這個
conn.close()