mysql插入长文本数据报错"Lost connection to MySQL server during query (%s)" % (e,))

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There are three ways to enlarge the max_allowed_packet of mysql server:

1. Change max_allowed_packet=64M in file /etc/mysql/my.cnf on the mysql server machine and restart the server
2. Execute the sql on the mysql server: set global max_allowed_packet=67108864;
3. Python executes sql after connecting to the mysql:

只要执行：set global max_allowed_packet=67108864;就可以了！