Problem Formulation In Python, the “TypeError: string indices must be integers” error typically occurs when a string type object is accessed with non-integer indices. This error often arises in situations involving data structures like lists and dictionaries. Understanding the Error & Code Example This error signifies that the code attempts to index a string using … Read more
Whether you’re debugging, logging, or working on introspection tasks, knowing how to extract a method’s name programmatically can be quite handy. This blog post will explore how to accomplish this in Python. Method 1: Introspection 🧑💻 Introspection in Python refers to the ability of a program to examine the type or properties of an object … Read more
Several methods are available to implement a swap function in Python, including tuple assignment and XOR. Tuple Assignment Swap Method The tuple assignment method creates two tuples with two variables each. The first tuple contains the original variables, while the second one has their exchanged values. Finally, these tuples are “unpacked” into individual variables, effectively … Read more
Python’s built-in hasattr(object, string) function takes an object and a string as an input. It returns True if one of the object‘s attributes has the name given by the string. Otherwise, it returns False. Syntax hasattr() The hasattr() object has the following syntax: Syntax: hasattr(object, attribute) # Does the object have this attribute? Arguments object … Read more
When working with lists that contain Unicode strings, you may encounter characters that make it difficult to process or manipulate the data or handle internationalized content or content with emojis 😻. In this article, we will explore the best ways to remove Unicode characters from a list using Python. You’ll learn several strategies for handling … Read more
The best way to remove Unicode characters from a Python dictionary is a recursive function that iterates over each key and value, checking their type. ✅ If a value is a dictionary, the function calls itself. ✅ If a value is a string, it’s encoded to ASCII, ignoring non-ASCII characters, and then decoded back to … Read more
To remove all Unicode characters from a JSON string in Python, load the JSON data into a dictionary using json.loads(). Traverse the dictionary and use the re.sub() method from the re module to substitute any Unicode character (matched by the regular expression pattern r'[^\x00-\x7F]+’) with an empty string. Convert the updated dictionary back to a … Read more
To add trailing zeros to a string up to a certain length in Python, convert the number to a string and use the ljust(width, ‘0’) method. Call this method on the string, specifying the total desired width and the padding character ‘0’. This will append zeros to the right of the string until the specified … Read more
As a Python developer, you might be familiar with lambda functions, which provide a simple and concise way to create anonymous functions. However, when it comes to asynchronous programming, you may wonder if it is possible to use async and await within lambda functions to create “async lambdas.” Currently, Python does not natively support async … Read more
This article delves into the diverse methods of extracting values from Python’s Enum class. The Enum class in Python offers a platform to define named constants, known as enumerations. These enumerations can be accessed through various techniques: This article underscores the adaptability and multifaceted nature of the Enum class in Python, illustrating the myriad ways … Read more
🎶 Winsound provides a simple way to play sound using the Windows built-in sound-playing machinery. 🐍 Now you may ask: “How to install Winsound?“ Answer: You don’t. 🐍 winsound is a built-in module in Python’s standard library for Windows. Like all standard libraries in Python, you don’t need to install it separately if you’re using … Read more
Python dictionaries are a versatile and powerful data structure. A common query is: “How can I access a dictionary key using its index and subsequently update the dictionary?” In this article, I’ll delve into this specific problem and explore the three most Pythonic solutions. Problem Formulation Given a dictionary, for instance: How can you: Method … Read more