如何从Python中给定的JSON文件 import data into mysql ？我收到错误了

回溯（最近一次调用最后一次）：文件“C：/Users/risha/PycharmProjects/Test/JSON_TEST.py”，第24行，con = pymysql.connect（host ='127.0.0.1'，user ='root' ，passwd =''，db ='test'，port ='3306'）文件“C：\ Users \ risha \ AppData \ Local \ Programs \ Python \ Python36 \ lib \ site-packages \ pymysql__init __ . py”，第90行，在连接返回连接（* args，** kwargs）文件“C：\ Users \ risha \ AppData \ Local \ Programs \ Python \ Python36 \ lib \ site-packages \ pymysql \ connections.py”，第704行，在init中self.connect（）文件“C：\ Users \ risha \ AppData \ Local \ Programs \ Python \ Python36 \ lib \ site-packages \ pymysql \ connections.py”，第964行，在connect self.host_info =“socket％s ：％d“％（self.host，self.port）TypeError：％d format：需要一个数字，而不是str

import pymysql

import os
import json

# read JSON file which is in the next parent folder
file = 'C://Users//risha//PycharmProjects//Test//video.json'
json_data= open(file).read()
json_obj = json.loads(json_data)


# do validation and checks before insert
def validate_string(val):
   if val != None:
        if type(val) is int:
            #for x in val:
            #   print(x)
            return str(val).encode('utf-8')
        else:
            return val


# connect to MySQL
con = pymysql.connect(host = '127.0.0.1',user = 'root',passwd = '',db = 'test',port ='3306')
cursor = con.cursor()


# parse json data to SQL insert
for i, item in enumerate(json_obj):
    person = validate_string(item.get("person", None))
    year = validate_string(item.get("year", None))
    company = validate_string(item.get("company", None))

    cursor.execute("INSERT INTO testp (person,  year,   company) VALUES (%s,    %s, %s)", (person,  year,   company))
con.commit()
con.close()
python mysql json python-3.x