小编Tec*_*ice的帖子

我正在尝试使用Python邮箱打印邮件的内容(邮件正文).

import mailbox

mbox = mailbox.mbox('Inbox')
i=1
for message in mbox:
    print i
    print "from   :",message['from']
    print "subject:",message['subject']
    print "message:",message['**messages**']
    print "**************************************" 
    i+=1

但我觉得消息[' 消息 ']不适合在这里打印邮件内容.我无法从文档中理解它

我写了以下代码,显示sqlite3.OperationalError: database is locked错误.任何帮助调试将非常感激.

基本上我试图将数据从table1复制到table2,并根据某些其他应用程序发生在table1上的更改将数据插入到table2中.

看起来我错过了一些部分.

import sqlite3

conn = sqlite3.connect("/home/sid/.Skype/testmasterut/main.db")
cursor = conn.cursor()

createLogTableSql = """create table IF NOT EXISTS sid_log as select id as "s_id",author as "s_author",timestamp as "s_timestamp",edited_by as "s_editedby",edited_timestamp as "s_edited_timestamp",body_xml as "s_body_xml" from Messages"""

cursor.execute(createLogTableSql)
conn.commit()
print "Table to save the old messages has been created"

selectLog = """ select * from sid_log """
original_table = cursor.execute(selectLog)

cursor2 = conn.cursor()
cursor3 = conn.cursor()
cursor4 = conn.cursor()

InsertTest = """ insert or ignore into …

我有输入 A = [ 2,3,4,1]

输出只是 A 中元素的所有可能排列，这可以通过单次转置（两个相邻元素的单次翻转）操作来完成。所以输出是：

[3,2,4,1],[ 2,4,3,1],[2,3,1,4],[1,3,4,2]

如何在 Python 中做到这一点？和/或C ?

编辑 允许循环换位。因此[2,3,4,1]==>[1,3,4,2]是允许的并且是有效的输出。