pymysql模块：执行数据操作，pymysql.err.InternalError: (1054, "Unknown column '' in 'field list'")

sql语句出错

sql = "INSERT INTO table1(word) VALUES (%s)" % (str)

改为

"INSERT INTO table1(word) VALUES ('%s')" % (str)

只要是values里面的值，都需要加“”