If you are a beginner and want to learn Python then check out our Python programming tutorials. These tutorials will helps you to improving you Python basic programming skills that will help to learn other libraries in Python.
While working on a data-cleaning project for a client in New York, I came across a massive dataset full of repeated entries. The challenge? Identify and print all the duplicate elements in a Python array efficiently. If you’ve worked with real-world data in Python, whether it’s from a CSV file, an API, or a database, … Read more >>
While working on a data-cleaning project for a client in New York, I ran into a common issue: text fields filled with inconsistent spacing. Some strings had two, three, or even five spaces between words. As a Python developer with over 10 years of experience, I’ve faced this problem countless times, especially when dealing with … Read more >>
To sort a dictionary in Python, sort its items and build a new dict: dict(sorted(d.items())) sorts by key, and dict(sorted(d.items(), key=lambda kv: kv[1])) sorts by value. Add reverse=True for descending order. Dictionaries themselves have no sort() method, but since Python 3.7 they keep insertion order, so the new dict stays in the sorted order. This … Read more >>
Working on a data-cleaning project for a U.S.-based retail company, I had to convert a long string of sales data into a CSV file using Python. At first, it seemed like a simple task: take a string and save it as a CSV file. But as I started, I realized there were multiple ways to … Read more >>
To write a string to a file in Python, open the file in write mode and call write(): with open(“file.txt”, “w”, encoding=”utf-8″) as f: f.write(text). Use mode “a” to append instead of overwriting, add \n for new lines, and convert numbers with str() first. This guide covers every way to write a string to a … Read more >>
In a small automation project, I needed to calculate the total of several user-entered values. Instead of manually adding them, I decided to create a simple Python program to add N numbers accepted from the user. It’s one of those beginner-friendly Python exercises that helps you understand how loops, lists, and functions work together. I … Read more >>
While working on a project that involved managing customer data for a retail analytics dashboard, I needed to append multiple dictionaries together in Python. The task seemed simple at first, but as I explored different ways of doing it, I realized there are multiple methods, each with its own advantages depending on the use case. … Read more >>
I was working on a Python project where I needed to manage a large collection of unique usernames for a U.S.-based web application. I realized that sets in Python were the perfect data structure for this task because they automatically ensure all elements remain unique. However, I found that many beginners get confused about how … Read more >>
I was working on a Python project where I had to merge multiple strings to create a formatted message for customer notifications. The challenge was simple: I needed to combine names, city names, and order details into one clean string. I’ve noticed that beginners often get confused about the right way to concatenate strings in … Read more >>
Recently, I was working on a data-cleaning project for a U.S.-based retail company where I had to compare two lists in Python to find missing product IDs between two systems. At first, I thought this would be simple, just check if both lists are equal. However, when I dug deeper, I realized that there are … Read more >>
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