Armen-Jean Andreasian Armen-Jean-Andreasian

Metaclasses

The metaclasses are responsible for the instantiation process.

By default, the metaclass of any Python class is type. same as class MyClass(metaclass=type)

Whenever, you do my_class = MyClass():

MyClass.__call__() method is being called. This happens because in Python, calling an instance as a function, calls the __call__() method of the class.
Inside the MyClass.__call__() method of the class:
1. The MyClass.__new__() method is being called to create a new instance.
2. MyClass.__new__() is a stub method calling the parent's .__new__(), in this case type.__new__()).

All

21    : FTP (File Transfer Protocol)
22    : SSH (Secure Shell)
23    : Telnet (Protocol)
25    : SMTP (Simple Mail Transfer Protocol)
53    : DNS (Domain Name System)
80    : HTTP (Hypertext Transfer Protocol)
110   : POP3 (Post Office Protocol)

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<title>Particle.js Example</title>
	<style>
	body {
	margin: 0;
	padding: 0;
	overflow: hidden;

	# x**2 + 5x + 4 = 0

	a = 1
	b = 5
	c = 4

	D = b*2 - 4a*c

	if D > 0:
	x_1 = ((-1 * b) + D*(1/2)) / 2 a

	Fonte: https://www.maccanismi.it/2012/08/21/elenco-url-streaming-radio-italiane-sul-web-rtl-rds-radio-kiss-kiss-r101-virgin-radio-e-moltre-altre/
	Da usare per lettori come VLC e similari.

	RTL:
	http://shoutcast.rtl.it:3010/

	RTL Best:
	http://shoutcast.rtl.it:3020/

	RTL ItalianStyle:

	1. Open the cmd. Press Win+R. Then type cmd and press enter.
	2. In cmd, type the command:
	wsl --install --distribution kali-linux

	P.S. To find the app press Win key and type Kali Linux

	class Book:
	def __init__(self, title, genre):
	self.title = title
	self.genre = genre


	class LibraryShelves(dict):
	def add_shelf(self, new_genre: str):
	"""Adds a new shelf to library"""
	if new_genre not in self:

	from typing import Callable


	class B:
	def b(self):
	...

	@property
	def bb(self) -> Callable:
	return self.b

	{
	"name": "main",
	"protection": {
	"enabled": true,
	"required_status_checks": null,
	"enforce_admins": true,
	"required_pull_request_reviews": {
	"dismiss_stale_reviews": true,
	"require_code_owner_reviews": true,
	"required_approving_review_count": 1