如何使用pymysql在python中连接mysql数据库，KEY ERROR

Question

im pretty new with python,im sorry if my question and my english doesnt sound right at all. ive been trying to integrated my scraping output to mysql,but unfortunately i got stuck.can you good people help me?

the output/error *<pymysql.cursors.Cursor object at 0x000000E81FF095E0> <pymysql.connections.Connection object at 0x000000E81FEF9070>

KeyError Traceback (most recent call last) in 9 data = csv.DictReader(scrapeddata) 10 for row in data: ---> 11 sql = "INSERT INTO emas ( tanggal, terakhir, pembukaan, tertinggi, terendah, vol, perubahan%) VALUES ('%s','%s','%s','%s','%s','%s','%s')" %(str(row["tanggal"]),str(row["terakhir"]),str(row["pembukaan"]),str(row["tertinggi"]),str(row["terendah"]),str(row["vol"]),str(row["perubahan%"])) 12 print(sql) 13 cur.execute(sql)

KeyError: 'tanggal'*

this is my code

import csv
import pymysql
#Connecting to MySQL in Windows
conn = pymysql.connect(host="127.0.0.1", port = 3306, user = "root", passwd = '', database = "mysql", 
charset = "utf8")
cur = conn.cursor()
cur.execute("USE historis")
print(cur)
print(conn)

with open(r'C:\Users\shulhan\output_emas.csv') as scrapeddata:
data = csv.DictReader(scrapeddata)
for row in data:
sql = "INSERT INTO emas ( tanggal, terakhir, pembukaan, tertinggi, terendah, vol, perubahan%) 
VALUES ('%s','%s','%s','%s','%s','%s','%s')"
    %(str(row["tanggal"]),str(row["terakhir"]),str(row["pembukaan"]),str(row["tertinggi"]),str(row["terendah"]),str(row["vol"]),str(row["perubahan%"]))
    print(sql)
    cur.execute(sql)
    conn.commit()

Answer 1

i think your connection setup should look like this:

connection = pymysql.connect(host='localhost',
                         user='user',
                         password='passwd',
                         db='db',
                         charset='utf8mb4',
                         cursorclass=pymysql.cursors.DictCursor)

you can find more information here: https://pymysql.readthedocs.io/en/latest/user/examples.html