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The Hard-Core Coder

~ I just can't stop writing code!

The Hard-Core Coder

Tag Archives: Python code

My Python App Framework

03 Saturday Oct 2020

Posted by Wyrd Smythe in CS101

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Tags

Python code

For me, Python modules seem to divide into two basic classes: library modules and application modules. The former contain basic building blocks, but the latter has top-level routines the operating system invokes when it runs the application.

Today I thought I’d post about the application framework I use for all apps.

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Multiplication Visualized

01 Tuesday Sep 2020

Posted by Wyrd Smythe in Fun

≈ 1 Comment

Tags

Cartesian product, Japanese multiplication method, multiplication, Pillow (PIL fork), Python, Python code

On my regular blog I just posted about a Japanese visual multiplication method. It’s a cute trick that ties into the notion of grid multiplication techniques. (In general, multiplication techniques are of some interest due to the Mandelbrot set, which requires multiplying large numbers lots of times.)

It turns out code to generate the patterns was a lot easier than I thought it would be. The hardest part was generating the diagonal summing lines.

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Life With Class

07 Thursday May 2020

Posted by Wyrd Smythe in Fun

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Tags

computer code, Conway's Life game, John Conway, program, Python code

Last time I showed you the functions necessary for Life — for John Conway’s game of Life, that is. We ended up with a set of functions you can use to generate frames of a Life session.

This time I’ll show you an object-oriented version (a Life class) along with some other tweaks to make things look nicer.

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John Conway’s Life

03 Sunday May 2020

Posted by Wyrd Smythe in Fun

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computer code, Conway's Life game, John Conway, program, Python code

You may have heard that mathematician John Conway died last April. To his everlasting dismay, most people only know him for his “game” of Life (which he considered trivial and inferior to his real mathematical work). Unfortunately for Conway, his Life game is fascinating.

To honor his passing, I whipped up a Python version that I thought I’d share. Python is about the only language I’ve used a lot in which I’ve never implemented Life, so high time I did, right?

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Python Decorators, part 2

25 Saturday Apr 2020

Posted by Wyrd Smythe in CS101

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Tags

Aspect-Oriented Programming, computer language, programming language, Python, Python code, Python decorator

Last time I began exploring Python decorators, which are a way of having one function “wrap” another function. Because the wrapper has access to both the input parameters and the return value, it can modify these values (unbeknownst to the inner function).

This time I pick up where I left off by exploring decorators modifying return values, decorators that take parameters, and decorators in classes.

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Python Decorators, part 1

24 Friday Apr 2020

Posted by Wyrd Smythe in CS101

≈ 1 Comment

Tags

Aspect-Oriented Programming, Python, Python code, Python decorator

I’ve been playing around with what Python calls decorators. They’re a built-in way of implementing Aspect-Oriented Programming techniques in Python. In fact, they’re quite powerful.

Since they aren’t a common language feature, they can be a little confusing at first, so I thought I’d try my hand at laying out how they work.

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The Playfair Cipher

27 Sunday Oct 2019

Posted by Wyrd Smythe in Fun

≈ 1 Comment

Tags

cipher, computer code, Python code, secret codes, substitution cipher

Earlier this month, on my other blog, I wrote about the Playfair Cipher, a polygraphic substitution cipher invented by Sir Charles Wheatstone in 1854.

At the time I mused about writing some Python to automate using the cipher, and now I’ve done that, so here it is:

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The Eight Queens

23 Sunday Jun 2019

Posted by Wyrd Smythe in CS101, Fun

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Tags

Python, Python code

There’s a fairly simple puzzle, called The Eight Queens, that I’ve long favored as a project for first semester CS students. The problem is simple enough for a beginner to tackle, yet also interesting enough to be engaging. (And just tricky enough to be a nice beginner challenge.)

Due to a discussion on my other blog, I dug out an old Python implementation I had, and, after looking at it, I thought it might be worth writing a post about. If nothing else, as I said, the problem is interesting enough to be engaging.

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Number Games #1

22 Friday Mar 2019

Posted by Wyrd Smythe in Fun

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Tags

Collatz conjecture, multiplicative persistence, Python code

This is a companion post to the Math Games #1 post on my main blog.

Here I present some code (Python, of course) for exploring the first two games, multiplicative persistence and the Collatz conjecture.

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So Random!

01 Tuesday Jan 2019

Posted by Wyrd Smythe in Fun

≈ 2 Comments

Tags

Python, Python code, random

To ring in the new year I thought I’d play around with an old friend from my earliest programming days, a random text generator. Back then (over 30 years ago), but a little bit always, a good way to practice programming is by working on small, relatively easy, but still fun, programs.

Simple games are common choice, but not the only one. (I’ve probably written a version of Mastermind in every programming language I know.) Another fun choice is various image or text generators (or processors). Random text generators, in particular, offer a range of complexity depending on your taste and time.

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The Posts

  • Brian Kernighan: Successful Language Design
  • My Python App Framework
  • Multiplication Visualized
  • Square Root of 2
  • Life With Class
  • John Conway’s Life
  • Python Decorators, part 2
  • Python Decorators, part 1
  • Function Currying
  • Rule #5: Always Use Parentheses

The Topics

  • Blog (4)
  • CS101 (28)
  • Fun (22)
  • Interesting (1)
  • Opinion (12)
  • Stories (12)
  • Uncategorized (1)

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Wyrd Smythe

Wyrd Smythe

The canonical fool on the hill watching the sunset and the rotation of the planet and thinking what he imagines are large thoughts.

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