Want to learn Python? Check out all the Python tutorials on PythonGuides.com. All these tutorials are written by Python experts with practical and real examples. Talk with our experts if you still have questions.
While mentoring a new Python developer, I realized that one of the most common beginner questions is, “How do I print variables in Python?” Even though this sounds simple, there are actually several ways to print variables in Python efficiently and professionally. I’ve used different techniques depending on the project, from quick debugging to formatting … Read more >>
Recently, I was working on a data‑processing project where I needed to extract specific elements from a long list of U.S. city names. The challenge? I didn’t want just one value; I needed multiple values at once from different positions in the list. If you’ve worked with lists in Python, you already know how flexible … Read more >>
When I first started working with Excel files in Python, I quickly realized that not all libraries could do everything. Some were great for writing data, while others were perfect for reading. After more than a decade of working with Python for data automation, I’ve used almost every Excel-related library available, from XlsxWriter to openpyxl … Read more >>
I was working on a Python project where I needed to loop through a list of U.S. states and display both the index and the name. The challenge was simple, but it reminded me how often beginners struggle with accessing the index while looping in Python. In my 10+ years of experience as a Python … Read more >>
As a developer, while working on a large data-cleaning project in Python, I had to make sure my code handled empty lists properly. The issue was simple: I needed to check whether a list was empty before performing any operations on it. If you’ve been coding in Python for a while, you know how often … Read more >>
While working on a data-cleaning project for a U.S.-based retail company, I ran into a frustrating issue, a Python KeyError. If you’ve worked with Python dictionaries, you’ve probably seen this error pop up at least once. It usually happens when you try to access a key that doesn’t exist. At first, it can seem confusing, … Read more >>
Recently, while working on a data-cleaning project for a retail company in the USA, I had to remove specific items from a list dynamically. Since I’ve been working with Python for over 10 years, I knew that the Python pop() list method would make this task quick and efficient. The challenge was simple: I needed … Read more >>
TensorFlow is one of the leading frameworks in artificial intelligence, powering many cutting-edge machine learning solutions worldwide. With the release of TensorFlow 3.x, Google takes another significant step toward more robust, flexible, and scalable ML development. For data scientists, developers, and AI enthusiasts, TensorFlow 3.x brings highly anticipated innovations and enhancements. This post walks you … Read more >>
While working on a Python data visualization project, I realized how cluttered scatter plots can look when data points overlap. Especially when you’re dealing with thousands of points, the dense clusters can hide important patterns. That’s when I learned how to make Matplotlib scatter plots transparent, and it completely changed how I visualize large datasets. … Read more >>
I was working on a Python data visualization project where I needed to compare multiple datasets side by side using Matplotlib scatter plots. The challenge was to make each scatter plot look distinct, with different marker styles, colors, and sizes, while maintaining a consistent and visually appealing layout. In this tutorial, I’ll show you exactly … Read more >>
Download a FREE PDF (112 Pages) Containing 51 Useful Python Programs.
Download a FREE PDF on how to become a Python developer.