Problem Formulation and Solution Overview In this article, you’ll learn how to increment a dictionary value in Python. To make it more fun, we have the following running scenario: Trinity Bank keeps track of its latest mortgage rates in a Dictionary format. Recently there has been a steady increase in rates. How would Trinity Bank … Read more
In Python, the numpy.meshgrid() function turns coordinate vectors into coordinate matrices. What’s the purpose of np.meshgrid()? The grid-like coordinate matrices separate the values for each dimension and are used widely in matrix manipulation, data visualization, and machine learning. Here is the argument table of numpy.meshgrid(). If it sounds great to you, please continue reading, and … Read more
🔒 Do you want to go deep into databases? The following career paths for coders interested in the broad database space are ordered alphabetically. The table shows the annual income of different job descriptions in the database space: Job/Career Description Annual Income $USD (Lower) Annual Income $USD (Higher) Cassandra Developer 110,000 145,000 Couchbase Developer 87,000 … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to convert an image from RGB to Grayscale. Aaron, an Icelandic Photographer, has a beautiful picture of their famous Elephant Rock. He needs to convert this picture from an RGB to Grayscale representation and has asked for your assistance. 💡Note: To follow along, right-click … Read more
Though Python’s BeautifulSoup module was designed to scrape HTML files, it can also be used to parse XML files. In today’s professional marketplace, it is useful to be able to change an XML file into other formats, specifically dictionaries, CSV, JSON, and dataframes according to specific needs. In this article, we will discuss that process. … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to convert a comma-separated string into a List. Fergus, a 10-year-old boy, is learning to code with Python. As homework, the teacher has asked the class to create a comma-separated string and convert this string into a list. Fergus needs your help. 💬 Question: … Read more
Problem Formulation 💬 Question: Given a Python list stored in a variable lst. How to remove the first and last elements from the list lst? Example: The list [‘Alice’, ‘Bob’, ‘Carl’, ‘Dave’] stored in variable lst becomes [‘Bob’, ‘Carl’]. Method 1: Slicing List[1:-1] To remove the first and last elements from a Python list, use … Read more
This article will go over the top 21 most attractive developer jobs in the decade to come. Note that the purpose of this article is to look forward to the future rather than looking backward into the past. The future is inherently uncertain but we did everything we could (as you’ll see) to remain objective … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to split a Python List in half. To make it more fun, we have the following running scenario: Lisa is writing a report concerning Population growth for three (3) countries (the US, UK, and Germany) between 2021-2022. However, she saved it as one list … Read more
The name agg is short for aggregate. To aggregate is to summarize many observations into a single value that represents a certain aspect of the observed data. The .agg() function can process a dataframe, a series, or a grouped dataframe. It can execute many aggregation functions, e.g. ‘mean’, ‘max’,… in a single call along one … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to multiply List Elements by a Number in Python. This example multiples the first five (5) Prime Numbers by two (2) and return the result. 💬 Question: How would we write Python code to multiply the list elements? We can accomplish this task by … Read more
The TypeError: unhashable type: ‘list’ usually occurs when you try to use a list object as a set element or dictionary key and Python internally passes the unhashable list into the hash() function. But as lists are mutable objects, they do not have a fixed hash value. The easiest way to fix this error is … Read more