Problem Formulation Given a hex string, i.e., a string of hexadecimal digits like so: 01ffa87135affcd45deebe You want to convert a batch of k hex digits to an integer. For example with k=2, you obtain the following batches of two hex digits each: 01 ff a8 71 35 af fc d4 5d ee be Now, convert … Read more
Question 💬 How to convert a hexadecimal string to a decimal integer value in Python? Answer Summary To convert a hex string to a decimal integer value, pass the hex string into the int() function with base argument such as int(‘0xfff’, base=16), or eval() function such as eval(‘0xfff’). The result is a decimal integer value … Read more
Problem Formulation and Solution Overview This article will show different ways to read and filter an Excel file in Python. To make it more interesting, we have the following scenario: Sven is a Senior Coder at K-Paddles. K-Paddles manufactures Kayak Paddles made of Kevlar for the White Water Rafting Community. Sven has been asked to … Read more
Problem Formulation and Solution Overview This article will show you how to retrieve a year from a DateTime Object in Python. Whether that being a year from a DateTime Object, a DataFrame, or even a NumPy array. 💬 Question: How would we write code to retrieve the Year from a DateTime Object? We can accomplish … Read more
Problem Formulation and Solution Overview This article will show you how 6 ways to remove List elements in Python. To make it more interesting, we have the following running scenario: Suppose you have a Christmas List containing everyone to buy a gift for. Once a gift is purchased, remove this person from the List. Once … Read more
Do you need to create a function that returns an integer value but you don’t know how? No worries, in sixty seconds, you’ll know! Go! 🔥🔥🔥 A Python function can return any object. To return an integer, use the built-in int() function. Or create your own function with an arbitrary expression within the function body … Read more
Do you need to create a function that returns a float 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 float value such as 3.14. To return a float, you can use the built-in float() function or create your own … Read more
Overview 🌞 Do you encounter this stupid error? TypeError: ‘builtin_function_or_method’ object is not subscriptable You’re not alone—thousands of coders like you experience this error in thousands of projects every month. This short tutorial will show you exactly why this error occurs, how to fix it, and how to never make the same mistake again. So, … 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
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 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