％s正确设置，但PyMySQL仍抱怨％d

我是新来的Python，并试图创建一个表格，将数据保存到数据库通过PyMySQL，但我有问题连接到数据库。我遵循了一个示例代码（我的版本如下）并彻底检查了所有语法和语音标记，但仍然收到以下错误。％s正确设置，但PyMySQL仍抱怨％d

File "c:\Users\Nimrod\Nimrod Dropbox\Dropbox\Nimrodsky\Python\Adiabatic Equation\DB connect with PyMySQL.py", line 10, in <module> 
charset='utf8')

文件 “C：\ ProgramData \ Anaconda3 \ LIB \站点包\ pymysql__init __ PY”，行90，在连接回报连接（* ARGS，** kwargs）文件“C：\ ProgramData \ Anaconda3 \ lib \ site-packages \ pymysql \ connections.py“，第706行，在init self.connect（）文件”C：\ ProgramData \ Anaconda3 \ lib \ site-packages \ pymysql \ connections.py “，第922行，连接 self.host_info =”socket％s：％d“％（self.host，self.port） TypeError：％d格式：需要一个数字，而不是str

import pymysql 
import pymysql.cursors 

# Connect to the database 
connection = pymysql.connect(host='sql8.freesqldatabase.com', 
          port='3306', 
          user='********', 
          password='**********', 
          db='*********', 
          charset='utf8') 


try: 
    with connection.cursor() as cursor: 
     # Create a new record 
     sql = "INSERT INTO `client` (`ID`, `client_name`, `client_address_1`, `client_address_2`, `client_address_3`, `client_postcode`, `occupier_name`, `install_address_1`, `install_address_2`, `install_address_3`, `install_postcode`) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)" 
     cursor.execute(sql, ('1', 'Terry Jones', '10 DOwning Street', 'Guildford','Surrey', 'GU1 5HA', 'Paul Smith', 'Wimbledon Hill', 'Wimbledon', 'London', 'SW19 5QT')) 

    #connection is not autocommit by default. So you must commit to save 
    #your changes. 
    connection.commit() 

    with connection.cursor() as cursor: 
     # Read a single record 
     sql = "SELECT `id`, `occupier_name` FROM `client` WHERE `client_name`=%s" 
     cursor.execute(sql, ('Terry Jones',)) 
     result = cursor.fetchone() 
     print (result) 

finally: 
    connection.close

来源

2017-05-27 Nimrod

端口必须是整数：port=3306。

来源

2017-05-27 17:17:54 phd

感谢那个博士学位，而不是代表我的一个愚蠢的错误，考虑到默认情况下PyMySQL打开端口3306，如果我留下了违规的线，那么我认为代码会起作用。再次感谢并保重。 – Nimrod

％s正确设置，但PyMySQL仍抱怨％d

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