A comparison of the approaches for joining strings in Python, using “+” and join() method. — When I start to use Python, it is very intuitive and easy to come out to use the plus operator + to join string, as many programming languages do such as Java. However, soon I realised that many developers seem to like to use the .join() method rather than +…

Introduction to the Regression Tree Model without formulas, equations, and scientific statements — This article is meant to explain the regression tree machine learning model without any buzzwords and scientific expressions, so you don’t need any pre-requisite knowledge or a Computer Science/Math degree to understand it. As one of the most commonly used machine learning models, a decision tree is usually used for…

The easiest way to have a “single format of correct” code — Have you ever copy-pasted some example code from library documentation or Stack Overflow? Or maybe you do not have a pure programmer background so you’re not trained to write perfectly formatted code? Do you want to improve your code readability to impress others? One of…

Define your data structure in a flexible schema using customised classes — Several weeks ago, I introduced a Python library called Cerberus. It can enable us to write a “schema” to validate our data objects (JSON/Dictionary) in a neat and readable way, rather than using endless if-else conditions. Do Not Use If-Else For Validating Data Objects In Python Anymore Cerberus — A neat and readable way to validate attributes of a dictionary.towardsdatascience.com

You can write customized functions and classes supporting the “with” statement — I’m sure that you must ever use the “with” statement in Python, as long as you are not a Python newbie who just started to learn it a few days ago. …

Parameterize your application with a config file and read using ConfigParser — When we write an application using Python, we likely want it to be able to run in different environments. Or, we want it to have different behaviours at runtime. …

Cerberus — A neat and readable way to validate attributes of a dictionary — It is not common to use lots of dictionaries in our Python programs to hold data objects with attributes. One typical example will be Web Development. Suppose we are using Python to develop the backend web services, it will be important to verify the JSON payload that is received from…

A Python built-in decorator reduces the complexity and length of your code — Object-oriented programming (OOP) in Python is always one of the hot topics. This is because Python is famous because its flexibility and out-of-the-box features which can reduce the development efforts to a large extent, which is also true for OOP. I have written several articles about using Python in an…