# Python How To’s

A collection of small, useful, how to’s for Python.

## Selection Sort: A Quick Tutorial and Implementation Guide

Prerequisites To learn about Selection Sort, you must know: Python 3 Python data structures – Lists What is Selection Sort? We are in the third tutorial of the sorting series. The previous tutorial talks about Bubble Sort and Insertion Sort. If you haven’t read that, please do as we will be building off of those […]

Read More## Insertion Sort: A quick tutorial and implementation guide

Prerequisites To learn about Insertion Sort, you must know: Python 3 Python data structures – Lists What is Insertion Sort? We are in the second tutorial of the sorting series. The previous tutorial talks about Bubble Sort which is a very simple sorting algorithm. If you haven’t read that, you can find it here. Like […]

Read More## Priority Queue: A beginner’s guide

Prerequisites To learn about Priority Queue, you must know: Python 3 Linear Queue Basic Python data structure concepts – lists, tuples What is a priority queue? Before you go ahead and read this tutorial, I highly recommend you to read the previous tutorial on Queues and Circular Queues as it will give you a better […]

Read More## Search implementations: Linear and Binary

Prerequisites To learn about Linear and Binary search, you’ll need to have a good understanding of: Python 3 Basic Python data structure concepts – lists Introduction Often we will have to find an element from a given data structure like lists, linked lists or binary trees. An efficient searching technique saves a great amount of […]

Read More## Circular Queue: An implementation tutorial

Prerequisites To learn about Circular Queue, you should first have a good understanding of the following: Python 3 Linear Queues (you can learn more here) Basic Python data structure concepts – lists Basic math operations – modulo(%) What is a Circular Queue? Before you go ahead and read this tutorial, I highly recommend you to […]

Read More## How to use Queue: A beginner’s guide

Prerequisites To learn about the Queue data structure, you should first have a good understanding of the following: Python 3 Basic data structure concepts like List (Click here to refresh List concepts) OOP concepts Introduction This tutorial will help you understand a Queue data structure and how to implement it. These concepts are often tested […]

Read More## Stack Tutorial: An implementation beginner’s guide

Prerequisites In order to understand this stack tutorial, you’ll need to learn the Stack data structure which requires the following: Python 3 Basic data structure concepts like List (Click here to refresh List concepts) OOP concepts What is a Stack? Howdy! If you are reading this article, you are about to learn one of the […]

Read More## Bubble Sort: Quick Tutorial and Implementation Guide

Prerequisites T0 learn about Bubble Sort, you must know: Python 3 Python data structures – Lists What is Bubble Sort? In the last tutorial, we saw how to search for an element from unsorted and sorted lists. We discovered that search efficiency is greater when the lists are sorted. So how do we sort a […]

Read More## HTML Parser: How to scrap HTML content

Prerequisites Knowledge of the following is required: Python 3 Basic HTML Urllib2 (not mandatory but recommended) Basic OOP concepts Python data structures – Lists, Tuples Why parse HTML? Python is one of the languages that is extensively used to scrap data from web pages. This is a very easy way to gather information. For instance, […]

Read More## How to Convert Dictionary Values to a List in Python

In Python, a dictionary is a built-in data type that can be used to store data in a way thats different from lists or arrays. Dictionaries aren’t sequences, so they can’t be indexed by a range of numbers, rather, they’re indexed by a series of keys. When learning about dictionaries, it’s helpful to think of […]

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