Problem Formulation and Solution Overview This article will show you how to extract a subset from a Dictionary in Python. Our article works with a Dictionary called cars, containing 30 key:value pairs: a name and associated horsepower. 💬 Question: How would we write code to extract a subset from a Dictionary? We can accomplish this … Read more
The Python return keyword allows you to define the return value of a function (e.g., return X). If you don’t explicitly set a return value or you omit the return statement, Python will implicitly return the following default value: None. There are three cases of what a function can return: Case 1: The function has … Read more
Coding Challenge 💬 Challenge: Given a string. How to find all palindromes in the string? For comprehensibility, allow me to quickly add a definition of the term palindrome: 💡 Definition: A palindrome is a sequence of characters that reads the same backward as forward such as ‘madam’, ‘anna’, or ‘101’. This article wants to give … Read more
Summary: You can use one of these methods to delete multiple keys from a dictionary Python –(1) Iterate across the list of keys to be deleted and use the syntax del dict[‘key’](2) Iterate across the list of keys to be deleted and call the dictionary.pop(key)method.(3) Eliminate unrequired keys and reconstruct the original dictionary using a dictionary … Read more
Problem: Given a dictionary and a filter condition. How to filter a dictionary by … … key so that only those (key, value) pairs in the dictionary remain where the key satisfies the condition? … value so that only those (key, value) pairs remain where the value satisfies the condition? In this tutorial, you’ll learn … Read more
Coding Challenge 💬 Challenge: Given a string. How to find the longest palindrome in the string? For comprehensibility, allow me to quickly add a definition of the term palindrome: 💡 Definition: A palindrome is a sequence of characters that reads the same backward as forward such as ‘madam’, ‘anna’, or ‘101’. This article wants to … Read more
Problem Formulation and Solution Overview This article will show you how to get a random entry from a Dictionary in Python. To make it more interesting, we have the following running scenario: 👨🏫 The Plot: Mr. Sinclair, an 8th great Science Teacher, is giving his students a quiz on the first 25 Periodic Table elements. … Read more
There are three main ways to check if a set is empty: Implicit: Pass the set into a Boolean context without modification. Python will automatically convert it to a Boolean using bool(). Explicit: Pass the set into the bool() Function. Comparison: Compare the set with the empty set like so: my_set == set() Let’s dive … Read more
Problem Formulation Given two arrays of the same length but different orders. How will you shuffle the two arrays in unison? Shuffling two arrays in unison means reordering the elements of both arrays in the same pattern. Let’s understand this with the help of an example. Example: Given:arr_1 = [[1, 1], [2, 2], [3, 3]]arr_2 … Read more
Use Python’s built-in max() function with the key argument to find the longest string in a set. Call max(my_set, key=len) to return the longest string in the set using the built-in len() function to determine the weight of each string—the longest string has maximum length. 👉 Recommended Tutorial: How to Find the Longest String in … Read more
The article begins by formulating a problem regarding how to extract emails from any website using Python, gives you an overview of solutions, and then goes into great detail about each solution for beginners. At the end of this article, you will know the results of comparing methods of extracting emails from a website. Continue … Read more
Coding Challenge 💬 Challenge: How to Find the Longest Line or String From a File in Python? Given the following text file: Depending on what exactly you’re looking for, you want to find the longest string word (A) or the longest line (B) in the file. Let’s dive into both variants next. Method 1: Find … Read more