Ways to Export a Python Dictionary to a CSV File

python dictionary to csv

In my ten years of working as a Python developer, I have frequently encountered the need to move data from a Python script into a spreadsheet. Whether I am analyzing California real estate trends or processing data from the New York Stock Exchange, saving a Python dictionary to a CSV file is a fundamental skill. … Read more >>

Sort a Python List of Tuples by the First Element

python sort list of tuples by first element

Handling data efficiently is a core part of my daily routine as a Python developer. Over the last decade, I have found that tuples are one of the most reliable ways to store structured information. Recently, I was working on a project involving US Census data. I needed to organize a large list of cities … Read more >>

How to Check if a Python String Contains a Substring

python string contains

I have spent over a decade writing Python code, and if there is one task I perform daily, it is searching for specific text within a larger body of data. Whether I am filtering through US Census Bureau datasets or parsing address strings from a California real estate database, checking for a substring is a … Read more >>

Find the Largest and Smallest Numbers in Python

what is the largest number in a list minus the smallest

I have constantly found myself needing to extract the extremes from datasets. Whether I was analyzing stock prices on the NYSE or processing census data from California, identifying the maximum and minimum values was always the first step. In this tutorial, I will show you exactly how to find the largest and smallest numbers in … Read more >>

Verify if a Variable is an Integer in Python

python check if integer

During my ten years of developing Python applications for financial firms in New York, I have often faced a recurring challenge. I frequently need to verify if a data input, like a ZIP code or a Social Security Number fragment, is actually an integer before processing it. If you don’t validate these variable types, your … Read more >>

How to Divide Two Numbers in Python (Program + Algorithm)

Divide two numbers in Python: 17 / 5, 17 // 5, 17 % 5 and divmod(17, 5) with results

To divide two numbers in Python, use the / operator: 17 / 5 gives 3.4. Use // for the whole-number part of the result, % for the remainder, and divmod() to get both at once. Below you’ll find a complete program that reads two numbers from the user, the algorithm and flowchart for it, and … Read more >>

How to Calculate the Area of a Square in Python

area of square in python

I have spent over a decade writing Python code for various engineering projects across the United States. Calculating the area of a square is one of the most fundamental tasks you will encounter when starting with Python geometry. Whether you are building a real estate app for Texas ranch sizes or a simple flooring calculator … Read more >>

Find Element Positions Using Python List Index Method

get index of element in list python

I have found that lists are the bread and butter of almost every application I build. Whether I am tracking stock prices on the NYSE or managing a list of ZIP codes for a logistics app, I often need to know exactly where a specific piece of data sits. Finding the position of an item … Read more >>

Calculate the Sum of Python Digits in a Number

Sum of Digits of a Number in Python

Calculating the sum of digits is a task I often encounter when cleaning data or preparing features for machine learning models. In my ten years of Python development, I have found that this simple arithmetic operation pops up in the most unexpected places. Whether I am verifying credit card checksums or analyzing US Census Bureau … Read more >>

Python Program for Fibonacci Series

fibonacci series program in python

I have spent over a decade writing Python code, and if there is one mathematical concept that constantly pops up in technical interviews and algorithm design, it is the Fibonacci series. The Fibonacci sequence is a fascinating set of numbers where each number is the sum of the two preceding ones. Usually, it starts with … Read more >>