💬 Question: How to convert a list of custom objects to a csv file? Example: Given is a list of custom objects of, say, type Employee that holds the name, job description, and income like so: Your goal is to write the content of the list of objects into a comma-separated-values (CSV) file format. Your … Read more
This tutorial gives you a simple introduction to Python’s NumPy library. You don’t need any prerequisites to follow the tutorial. My goal was to give a practical and fun NumPy introduction for absolute beginners with many examples. 💡 By reading through this tutorial, you will gain a basic understanding of the most important NumPy functionality. … Read more
Are you interested in Python but you don’t know which Python library is most attractive from a career point of view? Well, you should focus on the library you’re most excited about. But if you’re generally open because you have multiple passions, it would be reasonable to also consider annual and hourly income. These are … Read more
In this article, we will cover some of the ways to clean up your data and make it easier to read and access using the built-in Python pprint module. Remember, your machine is very efficient with your data, but it doesn’t care how that data appears to the human eye. So let’s learn how to … Read more
In the previous article of this Solidity crash course, we saw some of the basic elements of Solidity concerning smart contracts. In this article, we’ll be going even further with the examples and explanations, helping us understand why, when, and how are specific elements of Solidity used in a certain way. Also, as we continue … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to convert a List of Booleans to Integers. In Python, the Boolean is a built-in data type. These values represent True (1) or False (0). Also referred to as Truthy or Falsy values. In this article, we will articulate how these values behave. To … Read more
Problem Formulation Given a Python string: 💬 Question: How to convert the string to a CSV file in Python? The desired output is the CSV file: ‘my_file.csv’: a,b,c 1,2,3 9,8,7 Simple Vanilla Python Solution To convert a multi-line string with comma-separated values to a CSV file in Python, simply write the string in a file … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to find all matches in a string using regex. The Regular Expression, also referred to as regex, is a complex pattern to search for and locate matching character(s) within a string. At first, this concept may seem daunting, but with practice, regex will improve … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to replace whitespaces with underscores in Python. To make it more fun, we have the following running scenario: Bryan, an IT Instructor, has given his students a Python coding challenge: Take a famous quote and replace all whitespaces with underscores in four (4) ways: … Read more
If you’re short on time, the simple solution is to run the following command in your shell/terminal/CMD/PowerShell to check the version of library xxx: But many more interesting ways to check package versions may be useful for you! The following table refers to a list of articles to help you check the package/library/module version installed … Read more
In this article, I’ll show you how to check the version of a Python module (package, library). These are the eight best ways to check the version of a Python module: Let’s dive into some examples for each of those next! Method 1: pip show To check which version of a given Python library, say … Read more
💡 This article will show you how to use the BeforeAfter image component in your Plotly Dash project. Dash book author Ann just created the following stunning web project visualizing before/after galaxy images from the James Webb Space Telescope in a simple and straightforward Dash app using the BeforeAfter component of the dash-extensions library. Before … Read more