I consider 256 to be a nice, round number. I become annoyed when 10K means 10,000. I’ve written a useless program just for the “fun” of it. In fact, I prefer writing useless programs. I start counting from 0 and end up with one less than everyone else. I write equals as == and not … Read more
In this article, we’ll learn how to generate the Matplotlib color palette and then we will use it to select a specific color for our plot. Problem and Solution Overview Problem: When presenting data, the color that you assign to a plot is very important; a bad color choice can make your data difficult to … Read more
Problem Formulation 💡 Challenge: Given a CSV file. How to convert it to an excel file in Python? We create a folder with two files, the file csv_to_excel.py and my_file.csv. We want to convert the CSV file to an excel file so that after running the script csv_to_excel.py, we obtain the third file my_file.csv in … Read more
5 Easy Steps to Convert a CSV to a JSON File You can convert a CSV file to a JSON file by using the following five steps: Import the csv and json libraries Open the CSV as a file object in reading mode using the open(path_to_csv, ‘r’) function in a context manager (=with environment). Load … Read more
Story: This series of articles assume you work in the IT Department of Mason Books. The Owner asks you to scrape the website of a competitor. He would like this information to gain insight into his pricing structure. 💡 Note: Before continuing, we recommend you possess, at minimum, a basic knowledge of HTML and CSS and … Read more
Are you interested in hardware and always have been? Do you catch yourself buying the latest hardware gadgets like Rasperry Pies or Arduino microcontrollers just for fun? And, most importantly, do you think about becoming a hardware developer? You’re in the right place! To summarize the gist of this article in one sentence: ⭐⭐⭐⭐⭐ Five … Read more
In our first lesson, I made the point that Forex trading is a “zero-sum game”, and that is why I would learn Python first while I was starting to build as much knowledge about trading the markets as I could. Python programming is the exact opposite. If you are writing or teaching code, you are … Read more
Project Description Story: Assume you work in the IT Department of Right-On Realtors. Your boss asks you to create a simple website the Realtors can query to view current Home Sales. He would like this website created using the Flask framework in Python. In this article, we’ll create a simple website app to query real estate stats … Read more
AlphaGo was the first computer to beat Lee Sedol, who was considered the best Go player of the decade. Before AlphaGo, the strongest Go computer programs could only play Go at an amateur level. AlphaGo was further developed into AlphaZero, an AI that can master any game, including complex games like Shogi and Chess. Why … Read more
This is part 8 and a continuation of the Smart Contract Security Series. Ownership Exploit Private Variable Exploit Reentrancy Attack tx.origin Phishing Attack Denial of Service Attack Storage Collision Attack Randomness Attack Replay Attack This post provides insights into the replay attack in blockchains. As per the wiki, a replay attack is a valid data … Read more
Summary: You can use Python’s pickle library to save dictionary data to a file. Another efficient approach to save dictionary data to a file is to use Python’s built-in JSON package. You can also use simple file handling functions to store dictionary data in a text file directly. Problem: Given a Python dictionary. How will … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to erase the contents of a file in Python. To make it more fun, we have the following running scenario: Let’s say you have a Python script that retrieves the daily stock exchange prices for five (5) Tech Companies and saves it to prices.txt. … Read more