Download Think Python: An Introduction to Software Design: How To by Allen B. Downey PDF

By Allen B. Downey

ISBN-10: 1441419160

ISBN-13: 9781441419163

Python for software program layout is a concise creation to software program layout utilizing the Python programming language. meant for individuals without programming adventure, this publication starts off with the main uncomplicated options and progressively provides new fabric. many of the rules scholars locate so much difficult, like recursion and object-oriented programming, are divided right into a series of smaller steps and brought over the process a number of chapters. the focal point is at the programming method, with distinctive emphasis on debugging. The booklet encompasses a wide selection of routines, from brief examples to titanic tasks, in order that scholars have considerable chance to perform each one new suggestion. workout options and code examples can be found from thinkpython.com, in addition to Swampy, a collection of Python courses that's utilized in a few of the routines. ** released below the phrases of the GNU unfastened Documentation License. cash raised from the sale of this ebook helps the improvement of loose software program and documentation.

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95, but bookstores get a 40% discount. Shipping costs $3 for the first copy and 75 cents for each additional copy. What is the total wholesale cost for 60 copies? 3. If I leave my house at 6:52 am and run 1 mile at an easy pace (8:15 per mile), then 3 miles at tempo (7:12 per mile) and 1 mile at easy pace again, what time do I get home for breakfast? 1 Function calls In the context of programming, a function is a named sequence of statements that performs a computation. When you define a function, you specify the name and the sequence of statements.

Concatenate: To join two operands end-to-end. comment: Information in a program that is meant for other programmers (or anyone reading the source code) and has no effect on the execution of the program. ' For each of the following expressions, write the value of the expression and the type (of the value of the expression). 1. width/2 2. 0 3. height/3 4. 1 + 2 * 5 5. delimiter * 5 Use the Python interpreter to check your answers. 4 Practice using the Python interpreter as a calculator: 1. The volume of a sphere with radius r is 43 πr3 .

If every function checks its preconditions before starting, then if something goes wrong, you will know which function to blame. 11 Glossary instance: A member of a set. The TurtleWorld in this chapter is a member of the set of TurtleWorlds. loop: A part of a program that can execute repeatedly. encapsulation: The process of transforming a sequence of statements into a function definition. generalization: The process of replacing something unnecessarily specific (like a number) with something appropriately general (like a variable or parameter).

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