Problem Formulation and Solution Overview In this article, you’ll learn how to add a new column to a CSV file in Python. To make it more fun, we have the following running scenario: The owner of the Finxter Academy has asked you to add a new column to their existing CSV file called Total_Chrgs. 💬 … Read more
Problem Formulation Given an image, how to get the size of the image with PIL or any other Python library? Getting the size of an image with Python PIL(Python Image Library) basically implies that you want to get its height and width in pixels. Example: Consider the following image: 🔥Challenge: Get the size of the … Read more
You can change your text to bold, italic, and underlined in Python. Not only can you play around with the style of your code but also change its color with the help of specific packages and modules in Python. Interesting! Isn’t it? There are different ways of doing this. By the end of this tutorial, … Read more
You can change your text to bold, italic, and underlined in Python. Not only can you play around with the style of your code but also change its color with the help of specific packages and modules in Python. Interesting! Isn’t it? There are different ways of doing this. By the end of this tutorial, … Read more
What is Recursion? Recursion in programming is a problem-solving concept. In recursion, a function finds the solution by calling itself once or many times. This function call can be explicit or implicit. 💡Info: Recursion, according to (Tang 2013), is when a function or algorithm calls itself one or more times. These calls occur until the … Read more
Before we learn about the money, let’s get this question out of the way: What Is a Distributed System? A distributed system is a computer system spread across multiple computing devices connected via a communication network. Each participating device takes over part of the overall work performed by the system. By means of the collaboration … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to Sum Dictionary Values in Python. To make it more fun, we have the following running scenario: As a Python Freelancer, you would like to know how much money you made over the past few months. This data is stored in a Dictionary format. … Read more
Before we learn about the money, let’s get this question out of the way: What Does a Security Engineer Do? A security engineer is a “white-hat hacker”, i.e., an IT professional who analyzes computer systems and computer networks to ensure they are running securely. This involves proactive analysis and understanding of possible security threats and … Read more
Python’s numpy.where(condition, x, y) function returns an array with elements from x where condition is True, and elements from y elsewhere. When simply calling numpy.where(condition), it is the shorthand of np.asarray(condition).nonzero() and returns a tuple containing the indices of elements that meets the condition for each dimension. If it sounds great to you, please continue … Read more
[toc] Problem: Given a datetime.datetime object in Python, is there a way to add time to the given datetime object? Related Question on StackOverflow: Discussion: Adding time to a datetime object in Python should lead to a new datetime object with the updated time information. For example, if you add 5 hours to a datetime … Read more
A simple, no-library way to print bolded text in Python is to enclose a given string s in the special escape sequence like so: print(“\033[1m” + s + “\033[0m”). We’ll discuss this most Pythonic solution in Method 2 in this article. You can change your text to bold, italic, and underlined in Python. Not only … Read more
Caesar Cipher is a simple encryption and obfuscation method. It’s a straightforward substitution cipher that replaces each plain text character with the obfuscated character obtained by shifting the plain text character a fixed number of positions in the alphabet. What is Cryptography? Before we introduce our first cryptographic algorithm, Caesar’s cipher, let’s first introduce cryptography … Read more