Bijay Kumar 
I started coding in Python more than 10 years ago, and one of the simplest yet most efficient data structures I relied on was the dictionary. Dictionaries in Python are flexible, fast, and perfect for storing key-value pairs. But before you can fill them with data, you often need to start with an empty one. … Read more >>
I was working on a project where I had to compare two large dictionaries in Python. These dictionaries contained employee records from different departments, and I needed to quickly check if they were the same. At first, I thought it would be as simple as comparing two Python lists, but dictionaries are unordered collections, so … Read more >>
Recently, I was working on a project where I had to repeatedly check values from a database until a condition was met. The challenge was that I needed to assign values inside the loop while still controlling the exit condition. That’s when I realized that many Python beginners struggle with using while loops with assignment.So … Read more >>
When I first started working with Python dictionaries, I often needed to create a copy but exclude one or two keys. At first, I thought Python would have a built-in method for this. However, just as in Excel, where you sometimes need a workaround, in Python, you also need to employ different techniques. Over the … Read more >>
When I was working on a project where I had to clean up user IDs in a database. Some IDs had unwanted characters at specific positions. The challenge was simple: remove a character from a string at a given index. Since Python strings are immutable, we cannot directly delete characters. But with a few tricks, … Read more >>
I was working on a project where I had to clean up messy text data coming from customer feedback forms. Some of these strings contained numbers mixed with words, and I specifically needed to get last number in Python string. At first, I thought there would be a built-in function, but there isn’t. So, I … Read more >>
As a developer, while working on a data-cleaning project, I needed to compare two lists of customer IDs. One list came from our sales system, and the other from our support system. The challenge was simple: I needed to find which IDs were missing in one list but present in the other. At first, I … Read more >>
Recently, I was working on a project where I needed to save user data from a Python dictionary into a text file. At first, I thought this would be easy, but then I realized there are multiple ways to do it, depending on the format I wanted. Over the past 10+ years of coding in … Read more >>
While working on a project where I had to send structured data from a Python backend to a web application. The data was stored in a nested dictionary, and I needed to convert it into JSON format. The issue is… while converting a simple dictionary to JSON is easy, many people get confused when the … Read more >>
I was working on a file management project, and I needed to quickly grab the current folder name where my Python script was running. At first, I thought it would be a one-line solution, but then I realized there are multiple ways to do this, depending on whether you want the full path or just … Read more >>
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