tombohub

Learning Plan for Design Patterns and Principles of Good Design

These learning resources primarily focus on programming using Good Design Principles and Design Patterns

There is an emphasis on learning using PHP, although most patterns are universal to every object orientated language.

// default exports
export default 42;
export default {};
export default [];
export default (1   2);
export default foo;
export default function () {}
export default class {}
export default function foo () {}

Multi-level arg parse

Shows how to structure a python app using arg parse that goes down many levels.

The "trick" is to

add a subparsers S1[]
add parsers P1[] to your subparser S1[x]
add a new set of subparsers S2[] to one of those parsers P1[x]

	"""
	Single Responsibility Principle
	“…You had one job” — Loki to Skurge in Thor: Ragnarok
	A class should have only one job.
	If a class has more than one responsibility, it becomes coupled.
	A change to one responsibility results to modification of the other responsibility.
	"""

	class Animal:
	def __init__(self, name: str):

	#Resizes an image and keeps aspect ratio. Set mywidth to the desired with in pixels.

	import PIL
	from PIL import Image

	mywidth = 300

	img = Image.open('someimage.jpg')
	wpercent = (mywidth/float(img.size[0]))
	hsize = int((float(img.size[1])*float(wpercent)))

	# Extension of http://www.yilmazhuseyin.com/blog/dev/create-thumbnails-imagefield-django/

	# Note: image_folder and thumbnail_folder are both a callable (ie. a lambda that does a '/'.join())

	class Image(Media):
	image = models.ImageField(
	upload_to=image_folder
	)

	thumbnail = models.ImageField(