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9-5 Number of login attempts: In the User class written to complete Exercise 9-3, add an attribute named login_attempts. Write a method named increment_login_attempts () that adds 1 to the value of the attribute login_attempts. Write another method called reset_login_attempts (), which resets the value of the attribute login_attempts to 0.未等吴芮开口，吴臣先一步喊道：敢问尹壮士缘何如此笃定，可有什么凭据？尹旭笑道：秦灭六国，施暴政以严刑峻法苛待天下人，百姓生活苦不堪言，心生怨恨已久。若非他的花香和舞蹈，也不户前去戚家村，也不会碰巧遇到齐国的散兵游勇。电视剧改编自编剧亚当·F·戈德堡的真实人生经历。故事发生在二十世纪八十年代美国的一个平凡的家庭之中。贝弗利（温迪·麦克伦敦-考薇 Wendi McLendon-Covey 饰）和穆瑞（杰夫·格尔林 Jeff Garlin 饰）是一对结婚多年的夫妻，尽管生活中少不了磕磕绊绊，穆瑞的暴脾气更是为平静的生活增添了一丝波澜，但他和妻子之间的感情一直以来都十分要好。褚玉凤一伙仗着玉璞权势作恶多端，又与南善堂恶霸杜笑山合谋诱骗常玉英，逼迫其父白宗魏含冤坠楼。荣源深感白宗魏之才，挺身而出，新来的警察厅长正是因劫富济贫而投奔张作霖的常玉英之兄常之英，遂终破获此案。2. As a Cheng Yuan who has been engaged in machine learning for more than two years, seeing the computer series you recommended also thinks it is very unreliable. I have read most of the books you recommended. In particular, novice readers are not recommended to read "Introduction to Algorithms" and "Data Mining: Concepts and Technologies". These two books are thick and heavy. Although the content is also good, you will not know the year of the monkey when you finish reading them. What does a novice need? It's getting started! Secondly, have you really finished reading Python Core Programming? This book is not for Python newcomers. It is very thick and difficult. It is very unfriendly to newcomers. And if you just want to be AI, then many parts of this book don't need to be used. Is web development and Django framework really necessary for our AI engineers? No. Xiao Bai has no distinction between key and non-key points in a book. He spent a lot of time learning unnecessary knowledge, which really does more harm than good. Giving guiding and targeted recommendations is responsible recommendation.