David Barrat dbrrt

terminal:

npm i --save-dev rollup rollup-watch rollup-plugin-typescript typescript typings
npm i -S react react-dom
./node_modules/.bin/typings install react react-dom --save
mkdir src dist
touch src/index.tsx

R to python data wrangling snippets

The dplyr package in R makes data wrangling significantly easier. The beauty of dplyr is that, by design, the options available are limited. Specifically, a set of key verbs form the core of the package. Using these verbs you can solve a wide range of data problems effectively in a shorter timeframe. Whilse transitioning to Python I have greatly missed the ease with which I can think through and solve problems using dplyr in R. The purpose of this document is to demonstrate how to execute the key dplyr verbs when manipulating data using Python (with the pandas package).

dplyr is organised around six key verbs:

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

aiopg playing with aiohttp and gunicorn

Setup

virtualenv -p /usr/bin/python3.5 env && source env/bin/activate
pip install SQLAlchemy aiohttp aiopg gunicorn

Usage

[LINUX MINT 17.2] Install Terraform

$ wget -P /tmp/ \
> https://releases.hashicorp.com/terraform/0.6.9/terraform_0.6.9_linux_amd64.zip && \
> [sudo] sudo mkdir /opt/terraform && \
> [sudo] unzip /tmp/terraform*.zip -d /usr/local/bin

Pentax Camera SCSI protocol

General

To control the Pentax camera, the camera has to be set to Mass Storage (MSC) mode, rather than PTP mode.

Vendor specific SCSI command is used to communicate with Pentax camera.

Tableau Server

Website: http://www.tableau.com
Download: http://www.tableau.com/support/esdalt

REST API

Functionality behind the data sources, projects, workbooks, site users, and sites on a Tableau server.

	const bcrypt = require("bcrypt");
	// use this library in case your version of node doesn't support Promise
	// const Promise = require("promise");

	let password = "hello";
	let stored_hash = "";

	// first generate a random salt
	function genSalt(password) {
	return new Promise((resolve, reject) => {

	// getComponent is a function that returns a promise for a component
	// It will not be called until the first mount
	function asyncComponent(getComponent) {
	return class AsyncComponent extends React.Component {
	static Component = null;
	state = { Component: AsyncComponent.Component };

	componentWillMount() {
	if (!this.state.Component) {
	getComponent().then(Component => {

	#!/bin/bash
	# Usage:
	# $ le-aws-upload-cert.sh

	echo "Current list of certificates in AWS"
	echo "-----------------------------------"
	aws iam list-server-certificates
	echo
	read -p "Domain name: " domain_name