Raspberry Pi: Raspberry Pi programming for beginners, including Raspberry Pi projects, tips, tricks, and more! by Newport Craig

Author:Newport, Craig [Newport, Craig]
Language: eng
Format: epub
Published: 2017-03-14T16:00:00+00:00

Chapter 5: A Primer to Python 3

Python is regarded as the most fitting programming language for the Raspberry Pi. It is a free, open-source language, and it is optimized for beginning coders to learn easily.

It has a huge library of free modules that can be imported with a simple command. Instead of having to code their own utilities, Python can import modules like os and random to bring in functions that will be useful when writing new programs.

You can find the Python 3 Integrated Development and Learning Environment (IDLE) in the drop-down Menu of Raspbian's desktop. There are two ways to control Python 3: through the interactive shell or through an IDE such as IDLE. The IDLE is better for handling big tasks like writing programs and defining functions.

The IDLE makes it very easy for one to write in Python and learn while they are doing it. The text field is formatted to display the code clearly and easily. The text will change colors when the user inputs code and the interpreter distinguishes what the user is doing, displaying tooltips and other helpful hints .

Working within the IDLE will help the user write programs easily and quickly, which will help automate tasks when creating projects with the Raspberry Pi 3. Support for Raspberry Pi functions such as the GPIO pins are available for import as modules within Python.

Python is known as an object-oriented programming language. Python makes it very easy to create classes and objects. An object is a unique instance of a data structure, defined by its class. A class is a prototype for an object that contains definitions for a set of attributes that characterize any class object.

Within classes, you can define functions which are known as methods. When calling a method from an object, it can perform as a function and takes an argument. Also, Python supports class inheritance, which means that classes that are derived from an original class receive the characteristics of that class.

Object-oriented programming is not unique to Python, but Python offers the power of object-oriented programming to beginners by simplifying many of the processes involved. It is easy to create, modify, and understand objects and classes, and then utilize them in your own programs.

In addition to being easy to write, Python also handles some things behind the scenes that a beginner may not want to be concerned with. Python allocates its memory automatically, it does not require the user to declare data types, and it is easier to read and write files than it is in other similar programming languages. Python 3 is the best programming language for a beginning Raspberry Pi 3 user .

Why Python 3?

Raspbian offers its users access to both the Python 2 and Python 3 IDLE's, although Python 3 is the better choice for users who are beginning to learn to program in Python. There are a few minor differences that make Python 3 a better programming language. It is up to the user to choose, because there are

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