Book Image

Learn Programming in Python with Cody Jackson

By : Cody Jackson
Book Image

Learn Programming in Python with Cody Jackson

By: Cody Jackson

Overview of this book

Python is a cross-platform language used by organizations such as Google and NASA. It lets you work quickly and efficiently, allowing you to concentrate on your work rather than the language. Based on his personal experiences when learning to program, Learn Programming in Python with Cody Jackson provides a hands-on introduction to computer programming utilizing one of the most readable programming languages–Python. It aims to educate readers regarding software development as well as help experienced developers become familiar with the Python language, utilizing real-world lessons to help readers understand programming concepts quickly and easily. The book starts with the basics of programming, and describes Python syntax while developing the skills to make complete programs. In the first part of the book, readers will be going through all the concepts with short and easy-to-understand code samples that will prepare them for the comprehensive application built in parts 2 and 3. The second part of the book will explore topics such as application requirements, building the application, testing, and documentation. It is here that you will get a solid understanding of building an end-to-end application in Python. The next part will show you how to complete your applications by converting text-based simulation into an interactive, graphical user interface, using a desktop GUI framework. After reading the book, you will be confident in developing a complete application in Python, from program design to documentation to deployment.
Table of Contents (14 chapters)

Files and Databases

The final built-in object type of Python allows us to access files. Files in Python are different from the previous types I've covered. They aren't numbers, sequences, or mappings; they only export methods for common file processing. Technically, the file is a pre-built C extension that provides a wrapper for the C stdio.h (standard input/output) library header. If you already know how to use files in other languages, there isn't much difference in Python.

Files are a way to save data permanently. Apart from a few program listings, nearly everything demonstrated so far is resident only in memory; as soon as you close down Python or turn off your computer, it goes away. You would have to retype everything over if you wanted to use it again.

The files that Python creates are manipulated by the computer's filesystem. Python is able to use operating...