Remove the time challenge in Python
The challenge
You’re re-designing a blog and the blog’s posts have the following format for showing the date and time a post was made: …
Read Article →Python
329 articles about python development, tools, and best practices
Check if List contains Item in Python
The challenge
Create a method that accepts a list and an item, and returns true if the item belongs to the list, otherwise false.
Test cases
list = …How to Remove Vowels with Python
The challenge
Create a function called shortcut to remove all the lowercase vowels in a given string.
Examples
shortcut("codewars") # --> …How to Sort a List in Python
In this tutorial, you will learn how to sort a list in Python, by following the below three steps:
- Options to sort a list in Python
- What is the …
How to divide a number in Python
The challenge
Your task is to create functionisDivideBy (or is_divide_by) to check if an integer number is divisible by each out of two arguments.
A …
Read Article →How many times to Kaprekar’s constant using Python
Introduction
6174 is known as Kaprekar’s constant after the Indian mathematician D. R. Kaprekar. This number is notable for the following rule: …
Read Article →How to check if a String is a Number in Python
The challenge
Given a string s, write a method (function) that will return true if its a valid single integer or floating number or false if its not. …
Read Article →How to Write a Custom Comparator in Python
Generally, you want to use the built-in sorted() function which takes a custom comparator as its parameter. We need to pay attention to the fact that …
How to Sort an Integer in Python
Let’s say that you have an integer with value of 9271 and you want to sort it either ascending(1279) or descending(9721).
How would you do this …
Read Article →How to Upgrade PIP
In this tutorial, you will learn how to upgrade PIP.
You will also learn how to check the current version of PIP, as well as downgrade to a previous …
Read Article →How to Copy a File in Python
In this tutorial, you will learn how to copy a file using Python from a directory to another directory, or if you’re on Windows, then from a …
Read Article →Conway’s Game of Life – Unlimited Edition – in Python
What is this?
Read Article →Conways’s Game Of Life is a Cellular Automation Method created by John Conway. This game was created with Biology in mind but …
Most frequently used words in a text with Python
The challenge
Write a function that, given a string of text (possibly with punctuation and line-breaks), returns an array of the top-3 most occurring …
Read Article →Sort Binary Tree by Levels using Python
The challenge
You are given a binary tree:
class Node:
def __init__(self, L, R, n):
self.left = L
self.right = R …How to Split a String with Python
Splitting a string in Python is really easy.
You simply take a string and apply the split() method.
"Your String".split()
See some examples …
Read Article →Converting to PigLatin with Python
The challenge
Move the first letter of each word to the end of it, then add “ay” to the end of the word. Leave punctuation marks …
Read Article →Multiples of 3 and 5 with Python
The challenge
This multiples of 3 and multiples of 5 challenge is a variation of the common FizzBuzz question.
If we list all the natural numbers …
Read Article →Solving the “Catching Car Mileage Numbers” Challenge using Python
The challenge
Read Article →"7777…8?!??!", exclaimed Bob, "I missed it again! Argh!" Every time there's an interesting number coming up, he notices …
Counting smiley faces with Python
The challenge
Given an array (arr) as an argument complete the function countSmileys that should return the total number of smiling faces.
Rules for a …
Read Article →How to Convert Numeric Words into Numbers using Python
Challenge
Using Python, we want to convert words into numbers. In this challenge, we will explore how to convert a string into an integer.
The strings …
Read Article →Solve The Triangle of Odd Numbers using Python
The challenge
Given the triangle of consecutive odd numbers:
1
3 5
7 9 11
13 15 17 19
21 23 …“Who likes it” code Challenge in Python
The Challenge
You probably know the “like” system from Facebook and other pages. People can “like” blog posts, pictures or …
Read Article →Python 4 New Features Planned
It took the Python community a long time to move from Python 2 to Python 3. Now as we approach the possible end of Python 3 version history, we are …
Read Article →Custom RGB To Hex Conversion with Python
The challenge
The rgb function is incomplete. Complete it so that passing in RGB decimal values will result in a hexadecimal representation being …
Read Article →