Bijay Kumar 
Recently, while working on a data visualization project in Python, I had to highlight a specific date on a time series chart. The dataset contained daily stock prices for a U.S.-based company, and I needed to mark the date when a major event occurred, for example, a product launch or policy change. At first, I … Read more >>
I was working on a time-series visualization project in Python, where I needed to plot daily sales data for a retail store in the USA. The challenge I faced was controlling how the dates appeared on the X-axis in my Matplotlib charts. If you’ve ever plotted dates using plot_date() in Matplotlib, you might have noticed … Read more >>
Recently, I was working on a data visualization project for a US-based retail company where I had to plot sales data over time using Python. Everything looked great, except the date format on the x-axis. The default date format in Matplotlib didn’t match the standard US format (MM/DD/YYYY), and I needed to fix it. If … Read more >>
While working on a Python data visualization project, I had to customize time-series plots using Matplotlib’s plot_date() function. The default line style and color looked too generic, and I wanted a more professional, visually appealing plot that matched the client’s brand theme. If you’ve ever tried to adjust the appearance of date-based plots in Matplotlib, … Read more >>
Recently, I was working on a project where I needed to visualize sales data across different dates for multiple stores in the USA. I wanted to see how sales trends changed over time and also highlight specific points on those dates. At first, I tried using the regular plt.plot() function, but I quickly realized that … Read more >>
When I first started using Python Matplotlib, I was fascinated by how easily I could transform simple data into meaningful visual insights. Over the years, I’ve realized that logarithmic scales are essential when dealing with data that spans several orders of magnitude. In this tutorial, I’ll walk you through how I use Matplotlib’s log‑log scale … Read more >>
As a Python developer with experience, I’ve used for i in range() loops countless times in my projects. This simple yet powerful construct is one of Python’s most fundamental tools for iteration. In this article, I’ll walk you through everything you need to know about the for i in range() loop in Python. From basic … Read more >>
I was working on a project where I needed to create several custom classes in Python. As I was building these classes, I realized how crucial the __init__ method is for proper object initialization. The __init__ method is one of Python’s special methods that plays a fundamental role in object-oriented programming. In this article, I’ll … Read more >>
While I was reviewing some code for a data analysis project when I noticed a fellow developer using the // operator in Python. While it may look like a comment syntax to beginners, it’s actually a powerful arithmetic operator called floor division. In this article, I’ll explain exactly what the // operator does in Python, … Read more >>
I was troubleshooting a compatibility issue in a project where some features weren’t working as expected. The culprit turned out to be version-related – I was using Python 3.7 when the codebase required Python 3.9 or newer. This is a common scenario that many developers face. Knowing which Python version you’re running is crucial for … Read more >>
Download a FREE PDF (112 Pages) Containing 51 Useful Python Programs.
Download a FREE PDF on how to become a Python developer.