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One of the common tasks I faced while working with Python was extracting and counting numbers hidden inside a string. At first glance, it sounds simple. But when you actually try to count numbers in a string, you quickly realize there are multiple approaches in Python, each with its own benefits. In this tutorial, I’ll … Read more >>
When I was working with files in Python, one of the most common errors I faced was the File Does Not Exist exception. If you’ve ever tried to open a file that wasn’t there, you’ve likely seen the dreaded FileNotFoundError. It can be frustrating, especially when you’re building something important like a log processor, a … Read more >>
When I first started coding in Python more than a decade ago, I often ran into small but frustrating issues. One of them was printing text with quotes, new lines, or special characters. At that time, I didn’t know about escape sequences in Python. Once I learned them, it made my code cleaner and easier … Read more >>
Recently, I was working on a Python project where I had to visualize some experimental data with error bars and also emphasize a reference value using a horizontal line. At first, I thought Matplotlib might have a built-in option for combining error bars with horizontal lines. But after a bit of exploration, I realized we … Read more >>
While I was working on a Python project, I needed to highlight certain thresholds across multiple charts. I was using Matplotlib subplots to show different datasets side by side, and I wanted to add a horizontal line in each subplot to mark a reference value. At first, I thought there would be a quick one-click … Read more >>
When I first started working with Python for data visualization, I often needed to highlight thresholds or reference levels in my charts. One of the simplest ways to do this is by adding horizontal lines. I’ve used horizontal lines in Matplotlib countless times. Whether I was analyzing stock prices, visualizing air quality data, or building … Read more >>
I was working on a project where I needed to highlight certain thresholds in a chart. The data was from a survey on average working hours across US states, and I wanted to show benchmarks with labeled horizontal lines. At first, I thought Matplotlib would have a direct option to add labeled horizontal lines. But … Read more >>
Recently, I was working on a data visualization project where I needed to display contour plots with dashed lines. The problem was: I wanted to highlight specific contour levels with different line styles so that my audience could quickly distinguish them. I knew there had to be a clean way to do this. Over the … Read more >>
I still remember the first time I plotted a line chart in Python using Matplotlib. It looked fine, but when I tried to add a dashed line, the spacing didn’t look the way I wanted. In this tutorial, I’ll walk you through everything I’ve learned about controlling dashed line spacing in Matplotlib. I’ll show you … Read more >>
When I started working with Python data visualization, I often needed to highlight specific thresholds in my plots. Sometimes, a horizontal line was the best way to do it. But instead of a solid line, I wanted a dashed horizontal line to make the chart more readable. At first, it wasn’t obvious how to do … Read more >>
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