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How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

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type Node[K any, V any] struct {
	Key    K
	Value  V
	Red    bool
	Left   *Node[K, V]
	Right  *Node[K, V]
	Parent *Node[K, V]
}

type RedBlackTree[K any, V any] struct {

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"""
https://stackoverflow.com/questions/1094841/reusable-library-to-get-human-readable-version-of-file-size

>>> sizeof_fmt(168963795964)
'157.4GiB'
"""

def sizeof_fmt(num, suffix='B'):
    for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
        if abs(num) < 1024.0:

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server {
    listen 80;

    server_name localhost;

    access_log  /var/log/nginx/access.log;
    error_log  /var/log/nginx/error.log;

    add_header 'Access-Control-Allow-Origin' '*';

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def import_from_string(val):
    """
    Attempt to import a class from a string representation.

    From: https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/settings.py
    """
    try:
        # Nod to tastypie's use of importlib.
        parts = val.split('.')
        module_path, class_name = '.'.join(parts[:-1]), parts[-1]

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#!/bin/bash
CONTAINER_INDEX=$1
CONTAINER_NAME="mongo"$1
DATA_VOLUME="mongo-data-volume"$1
mkdir $CONTAINER_NAME
DB_PORT=$((30000+$CONTAINER_INDEX))
HTTP_PORT=$((28017+$CONTAINER_INDEX))
NETWORK_NAME=$2
REPLICASET_NAME=$3

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## Setup Docker
NETWORK_NAME=${1:-my-mongo-cluster}
REPLICASET_NAME=${2:-my-mongo-set}

# Disconnect old container if has.
docker network disconnect -f $NETWORK_NAME mongo0
docker network disconnect -f $NETWORK_NAME mongo1
docker network disconnect -f $NETWORK_NAME mongo2
# Remove old network if has.
docker network rm $NETWORK_NAME

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#!/usr/local/bin/python
# -*- coding: utf-8 -*-

import logging

logging.debug('debug message')
logging.info('info message')
logging.warn('warn message')
logging.error('error message')
logging.critical('critical message')

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The Best of the Best Practices (BOBP) Guide for Python

A "Best of the Best Practices" (BOBP) guide to developing in Python.

In General

Values

• "Build tools for others that you want to be built for you." - Kenneth Reitz
• "Simplicity is alway better than functionality." - Pieter Hintjens

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[General]
loglevel = notify
skip-proxy = 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12,127.0.0.0/24,100.64.0.0/10
bypass-tun = 0.0.0.0/8, 1.0.0.0/9, 1.160.0.0/11, 1.192.0.0/11, 10.0.0.0/8, 14.0.0.0/11, 14.96.0.0/11, 14.128.0.0/11, 14.192.0.0/11, 27.0.0.0/10, 27.96.0.0/11, 27.128.0.0/9, 36.0.0.0/10, 36.96.0.0/11, 36.128.0.0/9, 39.0.0.0/11, 39.64.0.0/10, 39.128.0.0/10, 42.0.0.0/8, 43.224.0.0/11, 45.64.0.0/10, 47.64.0.0/10, 49.0.0.0/9, 49.128.0.0/11, 49.192.0.0/10, 54.192.0.0/11, 58.0.0.0/9, 58.128.0.0/11, 58.192.0.0/10, 59.32.0.0/11, 59.64.0.0/10, 59.128.0.0/9, 60.0.0.0/10, 60.160.0.0/11, 60.192.0.0/10, 61.0.0.0/10, 61.64.0.0/11, 61.128.0.0/10, 61.224.0.0/11, 100.64.0.0/10, 101.0.0.0/9, 101.128.0.0/11, 101.192.0.0/10, 103.0.0.0/10, 103.192.0.0/10, 106.0.0.0/9, 106.224.0.0/11, 110.0.0.0/7, 112.0.0.0/9, 112.128.0.0/11, 112.192.0.0/10, 113.0.0.0/9, 113.128.0.0/11, 113.192.0.0/10, 114.0.0.0/9, 114.128.0.0/11, 114.192.0.0/10, 115.0.0.0/8, 116.0.0.0/8, 117.0.0.0/9, 117.128.0.0/10, 118.0.0.0/11, 118.64.0.0/10, 118.128.0.0