Saúl Sondón saulin18

learning queuing theory basics

Keeping up with python

Python is one of the tools in my toolbox, so I never used it exclusively. This means i need to get an update, occasionally.

Rant mode on

They want to have an expressive language, so they keep adding features upon features to it, instead of caring too much about performance (which means that no JIT - just-in-time compiler - has been added to cpython).

I would have thought that typescript is gaining over python on github, because node.js is JIT based, unlike cpython, but that guess was wrong: github article. The github article suggests a different reason:

Drizzle ORM PostgreSQL Best Practices Guide (2025)

Latest Drizzle ORM features and optimal schema patterns

Major 2025 Update: PostgreSQL now recommends identity columns over serial types. Drizzle has fully embraced this change.

import { pgTable, integer, text, timestamp, varchar } from 'drizzle-orm/pg-core';

Python testing reference

This document is a reference for common testing patterns in a Django/Python project using Pytest.

Contents:

Set-up and tear-down

Array

INTRO

Concurrency is a domain I have wanted to explore for a long time because the locks and the race conditions have always intimidated me. I recall somebody suggesting concurrency patterns in golang because they said "you share the data and not the variables".

Amused by that, I searched for "concurrency in golang" and bumped into this awesome slide by Rob Pike: https://talks.golang.org/2012/waza.slide#1 which does a great job of explaining channels, concurrency patterns and a mini-architecture of load-balancer (also explains the above one-liner).

Let's dig in:

	import React, { useEffect, useState } from "react";

	import Animated, {
	useSharedValue,
	useAnimatedStyle,
	runOnJS,
	} from "react-native-reanimated";

	import Ionicons from "@expo/vector-icons/Ionicons";

	MIT License

	Copyright (c) 2022-present, cayter

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	// Based on https://walkthrough.so/pblc/QCawSCKwOQLn/creating-a-custom-editorjs-block-tool-with-react

	import type {
	API,
	BlockAPI,
	BlockTool,
	BlockToolConstructorOptions,
	} from '@editorjs/editorjs'
	import ReactDOM from 'react-dom'

	from alembic import config
	from alembic import script
	from alembic.runtime import migration
	import sqlalchemy

	import exceptions


	engine = sqlalchemy.create_engine(DATABASE_URL)
	alembic_cfg = config.Config('alembic.ini')