Kat McKelvieProblem Formulation and Solution Overview In this article, you’ll learn how to update and replace text in a file using Python. To make it more fun, we have the following running scenario: Tristen, a columnist with the Toronto Star, is writing a column about Niagara Falls. He has noticed a few issue(s) with his writing. … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to extract specific columns or a sub-set thereof from a NumPy array in Python. Often, a sub-set of data needs to be extracted from a larger dataset. This sub-set could be a pre-determined number of column(s) or row(s). These examples show you how to … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to repeat a string multiple times in Python. Over your career as a Python coder, you will encounter situations when a string needs to be output/displayed a specified number of times. The examples below offer you various ways to accomplish this task. 💬 Question: … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to get the first Key and Value from a key:value pair in a Python Dictionary. A Dictionary in Python is used to store information in a key:value pair format. These pairs are modifiable and do not allow duplicates. 💡 Note: In theory, the dictionary … Read more
[😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁] 100% Problem Formulation and Solution Overview In this article, you’ll learn how to configure and display a progress bar. A progress bar is commonly used in Python or, for that matter, any other programming language to show the user an application’s progress. For example, an installation, a transferring of files, or any other commands. … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to convert a List of Booleans to Integers. In Python, the Boolean is a built-in data type. These values represent True (1) or False (0). Also referred to as Truthy or Falsy values. In this article, we will articulate how these values behave. To … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to find all matches in a string using regex. The Regular Expression, also referred to as regex, is a complex pattern to search for and locate matching character(s) within a string. At first, this concept may seem daunting, but with practice, regex will improve … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to replace whitespaces with underscores in Python. To make it more fun, we have the following running scenario: Bryan, an IT Instructor, has given his students a Python coding challenge: Take a famous quote and replace all whitespaces with underscores in four (4) ways: … Read more
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
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
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 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