Problem Formulation and Solution Overview 💡 This article will show you how to delete a line from a file in Python. To make it more interesting, we have the following running scenario: Rivers Clothing has a flat text file, rivers_emps.txt containing employee data. What happens if an employee leaves? They would like you to write … Read more
Welcome to the bonus content of “The Book of Dash“. 🤗 Here you will find additional examples of Plotly Dash components, layouts and style. To learn more about making dashboards with Plotly Dash, and how to buy your copy of “The Book of Dash”, please see the reference section at the bottom of this article. … Read more
You can check programmatically in Python whether a certain ENS ‘.eth‘ domain name is available by using the urlopen() function from urllib.request module to access the URL ‘https://etherscan.io/enslookup-search?search=example.eth’, replacing the URL suffix ‘example.eth’ with your desired domain. In the following example code snippet, I show how you could check a list of names, one domain … Read more
Quick answer: How to put a simple if-then-else statement in one line of Python code? To put an if-then-else statement in one line, use Python’s ternary operator x if c else y. This returns the result of expression x if the Boolean condition c evaluates to True. Otherwise, the ternary operator returns the alternative expression … Read more
Problem Formulation 💬 Programming Challenge: Given a list of lists (nested list). Find and return the longest inner list from the outer list of lists. Here are some examples: [[1], [2, 3], [4, 5, 6]] 👉 [4, 5, 6] [[1, [2, 3], 4], [5, 6], [7]] 👉 [1, [2, 3], 4] [[[1], [2], [3]], [4, … Read more
This article indicates a way to scrape imdb.com/chart/top/, a website that contains 250 numbers of top-rated Movies. This article is solely for educational purposes. 👉 Recommended Tutorial: Web Scraping – Is It Legal? The tool used to extract data from a website is Scrapy, and the software system is UNIX operating system. Virtual Environment Set … Read more
The article begins by formulating a problem relating to website click-through rate and gives you an overview of solutions about how to extract Google Featured Snippets using Python. And the article goes into great detail about the solution for beginners. At the end of this article, you will see the results of extracting featured snippets … Read more
The most basic ternary operator x if c else y consists of three operands x, c, and y. It is an expression with a return value. The ternary operator returns x if the Boolean expression c evaluates to True. Otherwise, if the expression c evaluates to False, the ternary operator returns the alternative y. Ternary … Read more
In the previous articles, we looked at some of the representative examples of smart contracts representing possible real-world scenarios. Our main focus was on capturing the essence of each case, without particular attention given to the general structure, i.e. layout of the respective source files. However, in this mini-series starting with this article, we will … Read more
Problem Formulation and Solution Overview This article will show various ways to print a single or multiple spaces in Python. Let’s say you have strings and would like to print them out to the terminal by placing a single or multiple spaces between them. 💬 Question: How would we write code to print spaces? We … Read more
Problem Formulation and Solution Overview This article will show you how to check if a Dictionary is empty in Python. Before moving forward, let’s review what a Python Dictionary is. 💡Dictionary Overview: The Python Dictionary is a data structure that houses key:value pairs of data. This data structure does not allow duplicate keys, thus ensuring … Read more
Use Python’s built-in min() function with the key argument to find the shortest string in a set. Call min(my_set, key=len) to return the shortest string in the set using the built-in len() function to determine the weight of each string—the shortest string has minimum length. 👉 Recommended Tutorial: How to Find the Shortest String in … Read more