Python’s async and await are powerful features that enable you to write asynchronous code to improve the performance of your applications, particularly when dealing with I/O-bound and high-level structured network code. Async and await are used with coroutines, which are special functions that can pause and resume their execution at specific points. This allows multiple … Read more
Bitwise Operators in Python Overview Bitwise operators in Python are used to perform bit-level operations on integers. They enable you to manipulate individual bits of data, providing an efficient way of handling binary data. The main bitwise operators in Python include AND, OR, XOR, NOT, and SHIFT. The AND operator (&) compares each bit of … Read more
Understanding Functions in Python 💡 A Python function is a block of reusable code that performs a specific task. Functions help break your code into smaller, more modular and manageable pieces, which improves readability and maintainability. Python functions are defined using the def keyword, followed by the function’s name and a pair of parentheses containing … Read more
To speed up my code, I just decided to (finally) dive into Python’s async with statement. 🚀 In this article, you’ll find some of my learnings – let’s go! 👇 What Is Python Async With? Python’s async with statement is a way to work with asynchronous context managers, which can be really useful when dealing … Read more
💬 Question: What is the difference between Python’s is and == operators? Answer The Python “==” operator compares equality of values whereas the Python “is” operator compares identity of objects, i.e., do the two operands point to the same object in memory. For example, the expression [1, 2, 3] == [1, 2, 3] returns True … Read more
Problem Formulation 💬 Question: How do you write a function that returns a real Python error instead of an “error code” such as -1 or None in case something got wrong? For example, you may want to check the function input arguments for having the correct type or length (in the case of iterable arguments) … Read more
💬 Question: What is the difference between return and break? When to use which? Let’s first look at a short answer before we dive into a simple example to understand the differences and similarities between return and break. Comparison Both return and break are keywords in Python. The keyword return ends a function and passes … Read more
Method 1: Return a New Empty List Using Square Brackets You can return an empty new list from a Python function using the square bracket notation [] after the return keyword using the expression return []. Here’s an example: The example also shows that the two created empty lists using two function calls point to … Read more
The Python return keyword allows you to define the return value of a function (e.g., return X). If you don’t explicitly set a return value or you omit the return statement, Python will implicitly return the following default value: None. There are three cases of what a function can return: Case 1: The function has … Read more
(Reading time: 19 minutes) The purpose of this article is to help you refresh your knowledge of all the basic Python keywords, data structures, and fundamentals. I wrote it for the intermediate Python programmer who wants to reach the next level of programming expertise. The way of achieving an expert level is through studying the … Read more
Problem Formulation and Solution Overview This article will show you how to delete variables and objects from memory using the del or None keywords. The Python language has several built-in reserved words having specific meanings called keywords. These keywords are reserved for Python and can not be used anywhere else. For example, declaring a variable, … Read more
💡 Question: Does Python have a for each or foreach loop? If so, how does it work? If not, what is the alternative? This article will shed light on these questions. I’ll give you the summary first and dive into the details later: Python has three alternatives to the “for each” loop: A simple for … Read more