pymysql.err.InternalError: (1054, "Unknown column 'None' in 'field list'")

"D:/projectwc/test/dd.py", line 43, in <module> effect_row = cursor.execute("insert into `222` set c={}".format(None)) File "C:\python\lib\site-packages\pymysql\cursors.py", line 166, in execute result = self._query(query) File "C:\python\lib\site-packages\pymysql\cursors.py", line 322, in _query conn.query(q) File "C:\python\lib\site-packages\pymysql\connections.py", line 835, in query self._affected_rows = self._read_query_result(unbuffered=unbuffered) File "C:\python\lib\site-packages\pymysql\connections.py", line 1019, in _read_query_result result.read() File "C:\python\lib\site-packages\pymysql\connections.py", line 1302, in read first_packet = self.connection._read_packet() File "C:\python\lib\site-packages\pymysql\connections.py", line 981, in _read_packet packet.check_error() File "C:\python\lib\site-packages\pymysql\connections.py", line 393, in check_error err.raise_mysql_exception(self._data) File "C:\python\lib\site-packages\pymysql\err.py", line 107, in raise_mysql_exception raise errorclass(errno, errval) pymysql.err.InternalError: (1054, "Unknown column ‘None‘ in ‘field list‘")

import pymysql

# 创建连接
conn = pymysql.connect(host=‘192.168.72.135‘, port=3306, user=‘root‘, passwd=‘123456‘, db=‘test‘)
# 创建游标
cursor = conn.cursor()

# 执行SQL，并返回收影响行数
effect_row = cursor.execute("insert into `222` set c={}".format(None))


# 提交，不然无法保存新建或者修改的数据
conn.commit()

# 关闭游标
cursor.close()
# 关闭连接
conn.close()

 

 解决办法：

把None 换成“Null”

effect_row = cursor.execute("insert into `222` set c={}".format("Null"))

 

pymysql.err.InternalError: (1054, "Unknown column 'None' in 'field list'")

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