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Cheatsheet for Django QuerySets

Current Django Version: 1.11

Methods that return new QuerySets

Can be chained:

Entry.objects.filter(**kwargs).exclude(**kwargs).order_by(**kwargs)

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Comprehensive Python Cheatsheet

^{Fork me on GitHub or Check out FAQ.}

Contents

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``` 
      ____                               _                    _           
     / ___|___  _ __ ___  _ __  _ __ ___| |__   ___ _ __  ___(_)_   _____ 
    | |   / _ \| '_ ` _ \| '_ \| '__/ _ \ '_ \ / _ \ '_ \/ __| \ \ / / _ \
    | |__| (_) | | | | | | |_) | | |  __/ | | |  __/ | | \__ \ |\ V /  __/
     \____\___/|_| |_| |_| .__/|_|  \___|_| |_|\___|_| |_|___/_| \_/ \___|
                         |_|
 _     _                     ____ _                _       _               _   
| |   (_)_ __  _   ___  __  / ___| |__   ___  __ _| |_ ___| |__   ___  ___| |_ 
| |   | | '_ \| | | \ \/ / | |   | '_ \ / _ \/ _` | __/ __| '_ \ / _ \/ _ \ __|

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This script to unfollow the following on your Github account automatically.

[].slice.call(document.querySelectorAll('.js-toggler-target')).forEach(function(button) {
   var x = button.parentNode.getAttribute("action")
	 if(x.indexOf("/users/unfollow") > -1){console.log(x);button.click();}
});

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import React from 'react';
import { render } from 'react-dom';
import { createStore } from 'redux';
import { connect, Provider } from 'react-redux';

const reducer = (state = {counter: 0}, action) => {
  switch (action.type) {
    case 'INCREMENT':
      return {...state, counter: state.counter+1};
    case 'DECREMENT':

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Deployment Guide to Installing Odoo 14 on Ubuntu 18.04 / 20.04

Table Of Contents:

1. Preparing System
2. Create Odoo user
3. Install and Configure PostgreSQL
4. Install Wkhtmltopdf
5. Install and Configure Odoo
6. Create a Systemd Unit File
7. Test the Installation

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RaspberryPi small commands

if files seems readonly file:

sudo mount -o remount,rw /root_bypass_ramdisks

set configurations

sudo raspi-config

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PowerShell Snipps Commands

* Rename Multiple file/folder

Rename only under directory

get-childitem prefix_* | foreach { rename-item $_ $_.Name.Replace("prefix", "another_prefix") }

Rename recursivly under directory

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Convert your Image into ASCII art picture:

# Python code to convert an image to ASCII image. 
import sys, random, argparse 
import numpy as np 
import math 

from PIL import Image 

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Odoo OpenUpgrade Database Migration

Aftar install and configure OpenUpgrade on your local linux:

python3 ./migrate3.py --config=odoo12-server.conf --database=mydb12 --run-migrations=12.0,13.0 --branch-dir=/var/tmp/openupgrade