Get Absolute Value in Python Without Using abs() Function

python absolute value

Over my 10+ years of working with Python, I’ve often come across situations where I needed to calculate the absolute value of a number but couldn’t use the built-in abs() function. At first, this might sound unusual; after all, abs() is quick and reliable. But in real-world projects, especially coding interviews, algorithm challenges, or restricted … Read more >>

Get the First Key in a Python Dictionary

python get first element of dict

Recently, I was working on a project where I had to quickly retrieve the first key from a Python dictionary. At first, it sounded simple, but when I dug deeper, I realized that dictionaries don’t behave exactly like Python lists. The challenge was that dictionaries are unordered collections in older versions of Python. But starting … Read more >>

Check if a Python Dictionary Contains a Key or Value

python dictionary contains

I was working on a project where I had to validate data stored in a Python dictionary. The challenge was simple: I needed to check if a dictionary contained specific keys or values. At first, I thought there might be a built-in function like dict.contains(). But soon, I realized Python doesn’t have such a function. … Read more >>

Convert a String to a Byte Array in Python

python string to bytes

Recently, I was working on a Python project where I had to send data over a network. The API required the data in byte format instead of a normal string. That’s when I realized many beginners struggle with converting strings to byte arrays in Python. While it looks complex at first, Python actually makes this … Read more >>

How to Remove an Element from a List in Python

How to Remove an Element from the List in Python using remove() method

While working on a data-cleaning project for a retail company in the USA, I had to remove certain unwanted values from a Python list. At first glance, this sounds like a simple task. But as I dug deeper, I realized there are multiple ways to remove an element from a list in Python. Each method … Read more >>

Count Words in a String or File Using Python

python word count

As a Python developer, I was working on a project where I needed to count the number of words in a large text file. I’ve often had to analyze text data: whether it’s customer feedback, product reviews, or log files. In this article, I’ll share how I personally perform a word count in Python. I’ll … Read more >>

Iterate Through a Python Dictionary with Multiple Values

iterate through dictionary python

I first started using Python more than a decade ago, and dictionaries quickly became one of my favorite data structures. They are flexible, fast, and perfect for storing key-value pairs. But sometimes, I needed each key in a dictionary to hold multiple values instead of just one. That’s when I discovered that Python makes it … Read more >>

How to Increment Value in a Python Dictionary

How to Increment Value in Dictionary Python using while loop

While working on a project that involved analyzing customer purchase data in the USA, I had to keep track of how many times each product was bought. I quickly realized that the best way to do this in Python was by using a dictionary. Dictionaries in Python are powerful because they allow me to map … Read more >>