Square(n) Sum in Python
The challenge Complete the square sum function so that it squares each number passed into it and then sums the results together. For example, for [1,… Read More »Square(n) Sum in Python
How to Fill an Array in Python
The challenge We want an array, but not just any old array, an array with contents! Write a function that produces an array with the… Read More »How to Fill an Array in Python
How to Fix the ‘Bad Interpreter’ Error from AWS and Python 3.7
This error often looks something like: Reinstall AWSCLI If you have started getting the Bad Interpreter error when you call awscli, then you can easily… Read More »How to Fix the ‘Bad Interpreter’ Error from AWS and Python 3.7
Retrieve records from MSSQLServer in Python
The below Python code will create a connection to a MSSQLServer instance, and retrieve data from it back into a variable called tblResults.
How to Remove Trailing Zeroes in Python
The challenge Numbers ending with zeros are boring. They might be fun in your world, but not here. Get rid of them. Only the ending… Read More »How to Remove Trailing Zeroes in Python
How to use Profilers in Python
When you have performance problems in your Python application, you can use a Profiler to help you. Step 1: Using cProfile Your first option is… Read More »How to use Profilers in Python
If you can’t Sleep, just count Sheep in Python
The challenge Given a non-negative integer, 3 for example, return a string with a murmur: “1 sheep…2 sheep…3 sheep…”. Input will always be valid, i.e. no negative integers.… Read More »If you can’t Sleep, just count Sheep in Python
Key-Value CLI Arguments in Python
If you have a CommandLine application (CLI) written in Python, you have a number of ways that you can take arguments from the user. You… Read More »Key-Value CLI Arguments in Python
How to use a Translation Table to Replace Characters in Python
Python provides the ability to create Translation Tables. First we create a Translation Table by calling str.maketrans(x, y, z), passing in our characters we want… Read More »How to use a Translation Table to Replace Characters in Python
How to Calculate the Sum of all Numbers in a String in Python
Let’s take the following string: How can we sum up all the numbers in this string? In the above code snippet, we split the string… Read More »How to Calculate the Sum of all Numbers in a String in Python
How to Find all Permutations of a String in Python
Python comes with a very useful module called itertools, which allows us to calculate permutations directly. This will result in 60 permutations: How to Find… Read More »How to Find all Permutations of a String in Python
How to Fix ‘no basic auth credentials’ with Docker and AWS ECR
If you are trying to push a Docker image to AWS ECR (Elastic Container Registry) and you get a no basic auth credentials error. Then… Read More »How to Fix ‘no basic auth credentials’ with Docker and AWS ECR
How to Reverse Words or Sentences in Python
Let’s take the following sentence: We can use slices to reverse the order of the string: Let’s say we wanted to reverse each word in… Read More »How to Reverse Words or Sentences in Python
How to solve AttributeError: ‘int’ object has no attribute ‘split’ – make: [sharedmods] Error 1
If you get the following error while trying to install something via Homebrew AttributeError: ‘int’ object has no attribute ‘split’ – make: *** [sharedmods] Error… Read More »How to solve AttributeError: ‘int’ object has no attribute ‘split’ – make: [sharedmods] Error 1
How to Push a Docker image to AWS ECR
By default, Docker pushes its images to Docker Hub. While Docker Hub is a great way to share both your public and private images, you… Read More »How to Push a Docker image to AWS ECR
How to Base64 Encode a String in Python
Python comes with the base64 module, but how do you use it? You start by including the module: But you would probably expect to just… Read More »How to Base64 Encode a String in Python
How to Get 10 Random Numbers in Python
The random module allows you to generate choices. This might give us back something like: [635, 450, 26, 829, 786, 563, 294, 586, 893, 953]… Read More »How to Get 10 Random Numbers in Python
Get the Middle Character in Python
The challenge Return the middle character of the word. If the word’s length is odd, return the middle character. If the word’s length is even,… Read More »Get the Middle Character in Python
Convert String to Datetime in Python
If you have a string and want to create a Datetime object out of it in Python, then you can use the Datetime Parse Time… Read More »Convert String to Datetime in Python
How to Abort SQL statements after a set time in MariaDB
Sometimes you don’t want a SELECT query to run for more than a set amount of time. This is a roundabout way to make your… Read More »How to Abort SQL statements after a set time in MariaDB
Multiprocessing Pools in Python
Python ships with a multiprocessing module that allows your code to run functions in parallel by offloading calls to available processors. In this guide, we… Read More »Multiprocessing Pools in Python
How to Double Characters in Python
The challenge Given a string, you have to return a string in which each character (case-sensitive) is repeated once. The solution in Python code This… Read More »How to Double Characters in Python
How to Reverse Words in Python
The challenge Complete the function that accepts a string parameter, and reverses each word in the string. All spaces in the string should be retained. Examples The… Read More »How to Reverse Words in Python
How to Count by X in Python
The challenge Create a function with two arguments that will return an array of the first (n) multiples of (x). Assume both the given number… Read More »How to Count by X in Python
Calculate the Sum of Pairs in Python
The challenge Given a list of integers and a single sum value, return the first two values (parse from the left please) in order of… Read More »Calculate the Sum of Pairs in Python