Coding For Entrepreneurs codingforentrepreneurs

Django for Jupyter

It's true packages exist to make it "easy" to use Django inside of a jupyter notebook. I seem to always run into issues successfully running these packages. I've found the below method useful although I cannot recall how I discovered how this works (aka attribution needed).

Requirements

Virtual Environment (virtualenv, venv, pipenv, etc)
Django installed & project created (we'll use the project name cfehome)
Jupyter installed at least in the virtual environment

I've been using cassandra a lot lately. It's very common to denote ID fields in cassanda as a time-based uuid field called timeuuid docs. In python, a timeuuuid is mearly uuid.uuid1 from the built-in uuid package.

Using the cassandra-driver, you might end up with a model like:

import uuid
from cassandra.cqlengine import columns
from cassandra.cqlengine.models import Model

Django Custom Context Processors Example

In cfehome/context_processors.py add:

def my_context(request):
    # caching
    return {
 "my_var": "hello world"

Serverless Framework IAM Policy

Use this IAM policy for the Serverless Framework with the AWS Provider for deploying Node.js apps as serverless functions on AWS Lambda.

Replace AWS_ID with your AWS Account ID (e.g. 123456789) which you can find under AWS IAM in the console.

	from fractions import Fraction

	def number_str_to_float(amount_str:str) -> (any, bool):
	"""
	Take in an amount string to return float (if possible).

	Valid string returns:
	Float
	Boolean -> True

	# Video https://youtube.com/shorts/MNUdPGIjMPw
	# Python 3.10
	# pip install openai-whisper
	# pip install git+https://github.com/openai/whisper.git
	# install ffmpeg
	# brew install ffmpeg
	import subprocess
	import whisper
	model = whisper.load_model("base")

	# Get version at https://knative.dev/docs/install/yaml-install/serving/install-serving-with-yaml/
	export KNATIVE_VERSION="v1.10.1" # ensure ISTIO install matches this version too

	# Install knative serving
	# Ref: https://knative.dev/docs/install/yaml-install/serving/install-serving-with-yaml/#install-the-knative-serving-component
	kubectl apply -f https://github.com/knative/serving/releases/download/knative-$KNATIVE_VERSION/serving-crds.yaml
	kubectl apply -f https://github.com/knative/serving/releases/download/knative-$KNATIVE_VERSION/serving-core.yaml


	# install istio

	export default async function isValidURL(url, disallowedDomains) {
	// Construct a regular expression pattern to match disallowed domains
	const disallowedPattern = `^https?:\\/\\/(?:${disallowedDomains.join('\|')})\\b`;
	let disallowedRegex = new RegExp(disallowedPattern, 'i');

	// Regular expression pattern to match a URL (excluding localhost)
	const urlPattern = /^(https?:\/\/)?((?!localhost)[\w.-]+)\.([a-z]{2,})(:\d{1,5})?(\/.*)?$/i;
	let urlRegex = new RegExp(urlPattern);

	// Test the URL against both URL pattern and disallowed domain pattern

	/*
	Next.js/Edge function method for hasing passwords
	Using the Web API Crypto feature instead of
	Built-in Node.js Crypto
	*/

	export default async function pbkdf2(password, salt, iterations, keylen) {
	const enc = new TextEncoder();
	const passwordBuffer = enc.encode(password);
	const saltBuffer = enc.encode(salt);