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 … Read more
In this tutorial, you will learn – How to create a basic linear regression model How to save and load an ML model using Pickle module How to save and load an ML model using Joblib module Background and Motivation Over the past years, Machine Learning (ML) has grown in importance with easy access to … Read more
Problem Formulation and Solution Overview This article will show you how to get the length of a 2D Array in Python. These examples will generate a 2D array with two (2) arrays of five (5) random integers and return the array’s length to make it more interesting. 💬 Question: How would we write code to … Read more
Do you encounter the following error message? TypeError: ‘dict_values’ object is not subscriptable You’re not alone! This short tutorial will show you why this error occurs, how to fix it, and how to never make the same mistake again. So, let’s get started! Solution Python raises the “TypeError: ‘dict_values’ object is not subscriptable” if you … Read more
Do you encounter the following error message? TypeError: ‘dict_keys’ object is not subscriptable You’re not alone! This short tutorial will show you why this error occurs, how to fix it, and how to never make the same mistake again. So, let’s get started! Solution Python raises the “TypeError: ‘dict_keys’ object is not subscriptable” if you … Read more
Problem Formulation Have you come across the usage of range(len()) while trying to iterate across all the items of a given iterable? Now, this brings up a couple of questions – (i) Why do we use range(len())? (ii) How do we use range(len())? 📝Solution Generally, range(len()) allows you to iterate across a given iterable/sequence to … Read more
Problem Formulation Say, you have a function create_df() that creates a DataFrame from some data that may be read from a CSV file, the web, or from another variable in the code (e.g., a nested list)—doesn’t matter. You want to return the DataFrame to the caller of the function at runtime. ⚡ However, the code … Read more
Do you need to create a function that returns a NumPy array but you don’t know how? No worries, in sixty seconds, you’ll know! Go! 🚀 A Python function can return any object such as a NumPy Array. To return an array, first create the array object within the function body, assign it to a … Read more
Question 💬 Question: Can you use lists as values of a dictionary in Python? This short article will answer your question. So, let’s get started right away with the answer: Answer You can use Python lists as dictionary values. In fact, you can use arbitrary Python objects as dictionary values and all hashable objects as … Read more
Method 1: Return a New Empty List Using Square Brackets You can return an empty new list from a Python function using the square bracket notation [] after the return keyword using the expression return []. Here’s an example: The example also shows that the two created empty lists using two function calls point to … Read more
Do you need to create a function that returns a Boolean (True or False) but you don’t know how? No worries, in sixty seconds, you’ll know! Go! 🔥🔥🔥 A Python function can return any object such as a Boolean value (True or False). To return a Boolean, you can have an arbitrary simple or complex … Read more
Do you need to create a function that returns a string but you don’t know how? No worries, in sixty seconds, you’ll know! Go! 🚀 A Python function can return any object such as a string. To return a string, create the string object within the function body, assign it to a variable my_string, and … Read more