A global variable is a variable that you can use from any part of a program, including within functions. Using global variables inside your Python functions can be tricky. You’ll need to differentiate between accessing and changing the values of the target global variable if you want your code to work correctly. Global variables can play a fundamental role in many software projects because they enable data sharing across an entire program. However, you should use them judiciously to avoid […]

Interactive Quiz ⋅ 7 QuestionsBy Martin Breuss In this quiz, you’ll test your understanding of Inheritance and Composition in Python. By working through this quiz, you’ll revisit how to use inheritance and composition in Python, model class hierarchies, and use multiple inheritance. The quiz contains 7 questions and there is no time limit. You’ll get 1 point for each correct answer. At the end of the quiz, you’ll receive a total score. The maximum score is 100%. Good luck! « […]

Interactive Quiz ⋅ 10 QuestionsBy Martin Breuss In this quiz, you’ll test your understanding of Django. By working through this quiz, you’ll revisit the steps you need to get started with Django. You’ll touch on topics that will help you create a fully functioning web application and revisit some of the most important features of Django. You’ll also investigate the architecture of a Django site, remember how to set up a new Django project with multiple apps, build models and […]

Interactive Quiz ⋅ 9 QuestionsBy Martin Breuss In this quiz, you’ll test your understanding of Web Scraping in Python. By working through this quiz, you’ll revisit how to parse website data using string methods and regular expressions, how to parse website data using an HTML parser, and how to interact with forms and other website components. The quiz contains 9 questions and there is no time limit. You’ll get 1 point for each correct answer. At the end of the […]

Interactive Quiz ⋅ 17 QuestionsBy Martin Breuss In this quiz, you’ll test your understanding of Creating Command-line Interfaces in Python with argparse. Command-line apps may not be common in the general user’s space, but they’re present in development, data science, systems administration, and many other operations. Every command-line app needs a user-friendly command-line interface (CLI) so that you can interact with the app itself. In Python, you can create full-featured CLIs with the argparse module from the standard library. The […]

Interactive Quiz ⋅ 7 QuestionsBy Bartosz Zaczyński Lazy evaluation is a programming concept where the evaluation of an expression is deferred until its value is actually needed. This can lead to performance enhancements by avoiding unnecessary calculations, and it can also allow for the creation of potentially infinite data structures. As you embark on this quiz, you’ll test your knowledge of lazy evaluation in Python and learn how to apply this concept to write cleaner and more efficient code. The […]

Interactive Quiz ⋅ 6 QuestionsBy Bartosz Zaczyński In this quiz, you’ll test your understanding of How to Format Floats Within F-Strings in Python. You’ll often need to format and round a Python float to display the results of your calculations neatly within strings. While there are several ways to format numbers in Python, formatted string literals or f-strings are usually the most frequent choice in modern Python programs. Knowing how to use f-strings effectively can make your code more readable […]