The Python Global Interpreter Lock or GIL, in simple words, is a mutex (or a lock) that allows only one thread to hold the control of the Python interpreter. This means that only one thread can be in a state of execution at any point in time. The impact of the GIL isn’t visible to developers who execute single-threaded programs, but it can be a performance bottleneck in CPU-bound and multi-threaded code. Since the GIL allows only one thread to […]

Interactive Quiz ⋅ 9 QuestionsBy Leodanis Pozo Ramos Share In this quiz, you’ll test your understanding of Single and Double Underscores in Python Names. By working through this quiz, you’ll revisit Python naming conventions that rely on using underscores (_), how to differentiate public and non-public names by using a single leading underscore, how to use double leading underscores to leverage name mangling in Python classes, and other common uses of underscores in Python names. The quiz contains 9 questions […]

Interactive Quiz ⋅ 7 QuestionsBy Martin Breuss Share In this quiz, you’ll test your understanding of Asynchronous Programming in Python. By working through this quiz, you’ll revisit the concepts of synchronous and asynchronous programs, why you might want to write an asynchronous program, and how to use Python async features. 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. […]

Structural pattern matching is a powerful control flow construct invented decades ago that’s traditionally used by compiled languages, especially within the functional programming paradigm. Most mainstream programming languages have since adopted some form of pattern matching, which offers concise and readable syntax while promoting a declarative code style. Although Python was late to join the party, it introduced structural pattern matching in the 3.10 release. Getting to Know Structural Pattern Matching Before taking advantage of structural pattern matching in your […]

In Python, type hinting is an optional yet useful feature for making your code easier to read, reason about, and debug. With type hints, you let other developers know the expected data types for variables, function arguments, and return values. As you write code for applications that require greater flexibility, you may need to specify multiple return types to make your code more robust and adaptable to different situations. You’ll encounter different use cases where you may want to annotate […]

Interactive Quiz ⋅ 8 QuestionsBy Martin Breuss Share In this quiz, you’ll test your understanding of Python threading and thread safety. You’ll revisit concepts such as race conditions, thread safety issues, and synchronization primitives in the threading module. This knowledge is crucial when working with multithreaded code using Python’s threading module and ThreadPoolExecutor. The quiz contains 8 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 […]

Python has several pieces of syntax that are syntactic sugar. This sugar is syntax that isn’t strictly necessary but gives Python some of its flavor as a readable, beginner-friendly, and powerful language. In this tutorial, you’ll explore some of Python’s most used pieces of syntactic sugar. In practice, you already use most of these pieces of syntax, as they include many well-known Pythonic constructs. As you read on, you’ll see how Python works under the hood and learn how to […]

Interactive Quiz ⋅ 11 QuestionsBy Bartosz Zaczyński Share In this quiz, you’ll test your understanding of Structural Pattern Matching in Python. You’ll revisit the syntax of the match statement and case clauses, explore various types of patterns supported by Python, and learn about guards, unions, aliases, and name binding. The quiz contains 11 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 […]

Interactive Quiz ⋅ 6 QuestionsBy Leodanis Pozo Ramos Share In this quiz, you’ll test your understanding of Python closures. Closures are a common feature in functional programming languages and are particularly popular in Python because they allow you to create function-based decorators. Take this quiz after reading our Python Closures: Common Use Cases and Examples tutorial. The quiz contains 6 questions and there is no time limit. You’ll get 1 point for each correct answer. At the end of the […]