Can I Write a For Loop and If Statement in a Single Line? A Simple Python Tutorial

Python’s elegance and readability often come from its ability to execute powerful operations in a single line of code. One such instance is the combination of for loops and if statements into a list comprehension. Understanding the Basics At its core, a list comprehension offers a succinct way to create lists. The syntax [expression for … Read more

Check Python Version: A Simple Illustrated Guide

The Best Way to Check Python Version (3 Easy Steps): To check your Python version, run python ‐V in your command line (Windows), shell (Mac), or terminal (Linux/Ubuntu). To check your Python version in your script, run import sys to get the module and use sys.version to find detailed version information in your code. In … Read more

Python List of Strings to Bytes (5 Easy Ways)

πŸ’‘ Problem Formulation: In many programming scenarios with Python, you might need to convert a list of strings to a corresponding list of byte objects. For instance, if you have an input list [‘hello’, ‘world’], you might want the output to be [b’hello’, b’world’], where each string in the list is converted to its bytes … Read more

Python One Line Array Filter

πŸ’‘ Problem Formulation: Filtering arrays (or lists in Python) is a common task where we aim to create a new list that includes only those elements that satisfy a specific condition. For example, given an input array [1, 2, 3, 4, 5], we might want to filter out all values greater than 2, resulting in … Read more

Python One Line if elif else

πŸ’‘ Problem Formulation: A common Python scenario to assign a value to a variable based on a condition. The basic if-elif-else construct is bulky and may not always be the most efficient way to handle simple conditional assignments. Consider a situation where you have a numerical input, and you want to categorize it as ‘small’, … Read more

Python Filter Empty Strings from a List

Below, we explore several methods to filter out empty strings from a list in Python. πŸ’‘ Problem Formulation: Given a list of strings like my_list = [“apple”, “”, “banana”, “cherry”, “”], we want to produce a new list that contains only the non-empty strings: [“apple”, “banana”, “cherry”]. Method 1: Using a for-loop The most straightforward … Read more

5 Ways to Filter a List of Strings Based on a Regex Pattern in Python

πŸ’‘ Problem Formulation: When working with a list of strings in Python, a common task is to filter the list based on specific patterns. Regular Expressions (regex) are a powerful way of defining these patterns, enabling complex matching criteria that can go well beyond simple substring checks. Let’s see how we can use regex to … Read more