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, …
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
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 numbers `` to N-1 …
How to Fix the ‘Bad Interpreter’ Error from AWS and Python 3.7
This error often looks something like:
.zshrc: /usr/local/bin/aws: bad interpreter:
/usr/local/opt/python/bin/python3.6: no such file or directory …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.
# use …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 ones.
1450 -> …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 to run …
Read Article →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 …
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 could take the …
Read Article →How to use a Translation Table to Replace Characters in Python
Python provides the ability to create Translation Tables.
our_text = "This is an example of some text"
translation_table = …How to Calculate the Sum of all Numbers in a String in Python
Let’s take the following string:
numbers = "this 1 2 3 4 5 is not a 8 9 10"
How can we sum up all the numbers in this string? …
Read Article →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.
from itertools import permutations
perms …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 you can easily …