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Python Practice Book, Release 2014-08-10 When Python sees use of a variable not defined locally, it tries to find a global variable with that name. However, you have to explicitly declare a variable as globalto modify it. numcalls=0 def square(x): global numcalls numcalls=numcalls+1 return x * x
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Solving these exercises will help make you a better programmer. Solve them in order, because each solution builds scaffolding, working code, and knowledge you can use on future problems. Read the directions carefully, and have fun! "Learning to program takes a little bit of study and a lot of practice" - Luis Montealegre [ ]
- Reverse each word of a string. Given: str = 'My Name is Jessa' Expected Output. yM emaN si asseJ. Show Hint. Use the split() method to split a string into a list of words.
- Read text file into a variable and replace all newlines with space. Given: Assume you have a following text file (sample.txt). Line1 line2 line3 line4 line5.
- Remove items from a list while iterating. Description: In this question, You need to remove items from a list while iterating but without creating a different copy of a list.
- Reverse Dictionary mapping. Given: ascii_dict = {'A': 65, 'B': 66, 'C': 67, 'D': 68} Expected Output: {65: 'A', 66: 'B', 67: 'C', 68: 'D'} Show Solution.
If you are familiar with Python programming and feel confident with the basics, the theory and logic surrounding programming, then you can just dip in and out of the book to get help on the specifics you need. The book is split into two sections: Part I In Part I, each chapter takes you through some basic programming rules and challenges for
- How to Code in Python 3. This book serves as an excellent resource for beginners eager to learn Python 3 programming. Lisa Tagliaferri guides readers through the essentials, providing clear explanations and hands-on examples.
- Python Notes for Professionals. Explore the world of Python programming with the 'Python Notes for Professionals' book by goalkicker.com. Whether you're a beginner or a seasoned pro, this comprehensive guide offers valuable insights, tips, and code snippets to enhance your Python skills.
- Learning Python, Fourth Edition. Whether you're a novice or an experienced developer, this comprehensive guide provides a solid foundation in Python. Mark Lutz's expertise shines through as he covers key concepts, syntax, and practical examples, making it an ideal resource for mastering the language.
- A Practical Introduction to Python Programming. This book offers a hands-on approach for learners, providing a solid foundation in Python essentials. Brian Heinold's clear and concise explanations, coupled with practical examples, make this book an invaluable resource for those new to Python.
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As a beginner you understand the python syntax and data types (integers, strings, lists, dictionaries, etc.) and you are able to write simple Python programs such as functions and use the standard library. Experience Level: You have started learning Python recently or has only worked on small, straightforward projects.
