Python

Snippets of Python code, mostly in Flask.

Bit Manipulation Part 2 - Bitwise operators in Python

A primer on bitwise operators in Python - left and right shifting, bitwise and / or / exclusive or, and complements.

Bit Manipulation Part 1 - Understanding binary numbers

An easy introduction to binary numbers, which will lead to a follow-up article on bit manipulation in Python.

Primer to Python multiprocessing, multithreading, and asyncio

Oct 24th, 2018 in Python

Basic overview of parallel / concurrent programming, including comparisons between multiprocessing, multithreading, and asyncio (coroutines) in Python.

Method delegation in Python

Jul 11th, 2018 in Python

Using Python, a short example on how to delegate specified methods to another object, as compared to composition and inheritance.

Using Python enums in SQLAlchemy models

May 16th, 2018 in SQLAlchemy | MySQL | Python

How to use enums in your models to enforce value consistency.

Python command-line scripts with argparse

Feb 15th, 2018 in Python

A template file for using conditional arguments when running Python scripts from the command line.

SQLAlchemy commit(), flush(), expire(), refresh(), merge() - what's the difference?

Nov 2nd, 2017 in Python

I've always struggled to remember between these very similar methods in the SQLALchemy ORM - so I took some time out to research these and write it down.

Prioritized Code Review Checklist - what to look for first, second, and last

Sep 21st, 2017 in Product | Python

A few notes on the code review process, and the steps I go through when reviewing.

Many to many relationships in SQLAlchemy models (Flask)

Jul 28th, 2017 in Python

Building model definitions for many-to-many relationships via a secondary table.

Bash script to relink alembic migrations

Sick of `alembic merge heads` slowing down your builds? Here's a short bash script I wrote to rename your migration files and update its down revision.