In a previous article, we talked about objects and classes, and how they can help you better organize your code. The SOLID principles of Object Oriented Design are a set of principles you can follow to make better use of objects and classes. These principles are not rules. They are more guidelines to try to …
What is JSON? (JavaScript Object Notation)
Javascript Object Notation, or JSON for short, is a data structure that uses only human-readable text to transfer or store information. It is very popular, especially in the context of web technologies, for transferring data between applications. JSON allows you to import and export data in a structured manner without doing a lot of work …
Python Objects and Classes
Python is an Objected Oriented programming language. This means that Python has a data type called objects. Today we will discuss what objects are; how are objects relate to classes; and when you should use objects and classes. What are Objects? Objects are containers that hold a collection of attributes and functions. As an example, …
Working with Python Collections
A collection in Python is an object that contains other objects. You can also think of it as a container or a bucket. There are many different kinds of collections contained within the containers module in Python. Today, we will discuss the different kinds of Python Collections/Containers. How to use different kinds of Containers. and …
Mutable vs Immutable objects in Python
There are two types of objects in Python, Mutable and immutable objects. Mutable objects are more flexible in that these objects can be changed in place. Immutable objects are more static and cannot be changed without allocating a new object of the new type or with the new value. In some languages, almost all variables …
Python Numbers
Today we will discuss the different kinds of number variables in Python. How to interact with them, and what they are used for. There are four kinds of numbers in the Python language: Int Long Float Complex Integers Integers are the basic kinds of numbers in any programming language. Integers are whole numbers, which means …
Working with DateTime objects in Python
When you read a date or time from a text file, user input, or a database, you are likely to get the date information as a string. It is helpful to convert the string to a datetime object since it will allow you to do more advanced functions. In today’s article, I will discuss and …
Using TinyDB with Python
When writing your python code, you will undoubtedly find yourself in a situation where you need to store some structured data. You could just write the data to a file, but that data might take a bit of work to parse later on. Setting up a MySQL server takes a bit of work, and might …
Python Math Operators
Understanding the Python Math Operators is very important. You use these operators throughout the Python language whether it be concatenating strings, doing basic algebra, complex calculus, or delving into data science. In this article, we will cover the basics of doing math with python including how to do multiplication, division, addition subtraction, exponents, and orders …
Python String Operations
A string is one of the many data types in Python. Some of the other common ones are objects, lists, integers, and dates. At its core, a string is really a list/array of characters. Today we will be Python String Operations. We will cover how to Concatenate, Tokenize, Manipulate, Search strings, and create string templates. …
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