python中sql语句的占位符

Posted 2020-10-12

报错信息："File"/usr/lib/pymodules/python2.6/MySQLdb/cursors.py", line 151, inexecute query = query % db.literal(args)

TypeError: %d format: a number is required, not str"

 

MySQLdb的字符串格式化不是标准的python的字符串格式化,

应当一直使用%s用于字符串格式化

 

python中无论整数，字符串占位符都为  %s，且不需加单引号

sql="insert into myauth_perm(permname, permurl, permdemo, parentid) values(%s, %s, %s, %s)"
cur.execute(sql,[html_permname, html_permurl, html_permdemo,html_parentid])