![]() If you’re tired of standard step-by-step tutorials, you’ll love the learn-by-doing approach of The Big Book of Small Python Projects. The professionally-formatted ebook is available on Amazon for 99 cents. You don’t need the frustration of being expected to create complex algorithms and computer science theory you need a large set of programming challenges that meet you at your level, with gentle explanations. #Contact book in python source code software#This is the perfect book for beginner and intermediate programmers who want to test their Python skills but aren’t ready to begin professional-level software development. Selected for their simplicity, these programming problems include gentle explanations of the problem, the prerequisite coding concepts you’ll need to understand the solution, and helpful templates to put together the programs if you have trouble starting from scratch. Other tutorials and books have taught you the basics of Python, but the 42 programming exercises in this book let you practice what you've learned. We want challenges that improve our coding skills, not leave us confused and discouraged. However, Python Programming Exercises, Gently Explained is for the rest of us. Many books and websites have aggressive programming challenges for top coders. The last chapter, on fractals, culminates with examples of the beautiful fractal shapes recursion can produce. The book also explains tail call optimization and memoization, concepts often employed to produce effective recursive algorithms, and the call stack, which is a critical part of how recursive functions work but is almost never explicitly pointed out in lessons on recursion. It is project-based, containing complete, runnable programs in both Python and JavaScript, and covers several common recursive algorithms for tasks like calculating factorials, producing numbers in the Fibonacci sequence, tree traversal, maze solving, binary search, quicksort and merge sort, Karatsuba multiplication, permutations and combinations, and solving the eight queens problem. This book teaches the basics of recursion, exposes the ways it's often poorly taught, and clarifies the fundamental principles behind all recursive algorithms. Its fearsome reputation is more a product of poor teaching than of the complexity of recursion itself. But there's nothing magical about recursion. Moreover, coders often perceive the use of a recursive algorithm as a sophisticated solution that only true programmers can produce. They're seen as an advanced computer science topic often brought up in coding interviews. Print(mycursor.Recursion, and recursive algorithms, have a reputation for being intimidating. Sql = "UPDATE book SET mobile = %s WHERE name = %s" New_mobile = input("Enter new mobile : ") Sql = "UPDATE book SET address = %s WHERE name = %s" New_address = input("Enter new address: ") Print(mycursor.rowcount, "record updated successfully") Sql = "UPDATE book SET name = %s WHERE name = %s" Print("\nPress the option you want to edit: ")Ĭh = int(input("Select Your Option (1-4): ")) Print(''.format(record,record, record,record)) Sql = "select * from book where name = %s" Sql = "INSERT INTO book(name,address,mobile,email) VALUES (%s,%s,%s,%s)" Contact details are saved in mysql database. #Contact book in python source code update#Some of the features in this project to delete contacts, update contact information, and display saved contacts. With this Contact Book project, you can save and find contact details. Contact Book - Python Project Using MySqlĪ contact book is a tool for saving a contact’s details, such as name, address, phone number, and email address. ![]()
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