Python Program: Creating Tuples Using Tuple Literals In Python, a tuple is an immutable sequence type, commonly used to store collections of items. Python tuples are very similar to Python lists in terms of nesting, indexing, and repetition. However, one…
How to Calculate the Size of a Directory in Python To get the size of a directory, you must walk the entire directory tree and add the size of each file. To do this, you can use the os.walk() and…
Python Program to Remove Duplicate Elements from a Dictionary In this article, we will discuss how to remove duplicate elements from a dictionary in Python. A dictionary is a data structure that stores key-value pairs and is a fundamental data…
Python Printing Dictionaries Pretty You may have tried inserting many print statements into your program to trace the execution flow, debug a bug, or generate logging information to output certain configuration settings. I often find myself frustrated when printing data…
Python Dictionary Expressions Sometimes you stumble upon a piece of code that’s so profound that you can learn a lot about the language by pondering it carefully. Such a code snippet is like a Zen “koan” practice—a question or story…
Python Class Variables and Instance Variables Pitfalls There’s a distinction not only between class methods and instance methods, but also between class variables and instance variables in Python’s object model. This distinction is crucial and caused me quite a bit…
Python Function Parameter Unpacking, the * and ** operators have a very nice but somewhat mysterious function, which is to “unpack” function parameters from sequences and dictionaries. Let’s define a simple function as an example: def print_vector(x, y, z): print('<%s,…
Although the *args and **kwargs arguments are often overlooked, they are incredibly useful features of Python. Understanding their potential will make you a more effective developer. What exactly are the *args and **kwargs arguments useful for? They allow functions to…
Google Search Analytics with Python In this article, we’ll cover how to analyze Google searches using the Python programming language. Google doesn’t share exact search numbers, but it’s estimated that there are 228 million searches per hour, or 5.8 billion…
Python Function Returns Void Values Python adds an implicit return None statement at the end of all functions. Therefore, if a function does not specify a return value, it returns None by default. This means that you can replace the…