Shafqat Ullah shafqatevo

Pony Considerations

If you're thinking of checking out the Pony programming language, here's a list of things that I think are important to know. This list is based on a Tweet that I wrote.

Editor/IDE support

There are Pony packages for several popular editors.

References:

https://github.com/tesseract-ocr/tesseract/wiki/Compiling

http://stackoverflow.com/questions/33588262/tesseract-ocr-on-aws-lambda-via-virtualenv

https://github.com/sirfz/tesserocr

Instructions for running Tesseract OCR on AWS Lambda with Python

In this gist I would like to describe an idea for GraphQL subscriptions. It was inspired by conversations about subscriptions in the GraphQL slack channel and different GH issues, like #89 and #411.

Conceptual Model

At the moment GraphQL allows 2 types of queries:

query
mutation

Reference implementation also adds the third type: subscription. It does not have any semantics yet, so here I would like to propose one possible semantics interpretation and the reasoning behind it.

Introductory Material

Add Graal JIT Compilation to Your JVM Language in 5 Steps, A Tutorial http://stefan-marr.de/2015/11/add-graal-jit-compilation-to-your-jvm-language-in-5-easy-steps-step-1/
The SimpleLanguage, an example of using Truffle with great JavaDocs. It is the officle getting-started project: https://github.com/graalvm/simplelanguage
Truffle Tutorial, Christan Wimmer, PLDI 2016, 3h recording https://youtu.be/FJY96_6Y3a4 Slides

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	"""Convert Dreem CSV to OSCAR-friendly Zeo CSV

	Liberty taken with the ZQ column, pinning it to 0. Other non-common fields are nulled.
	Tested with Python 3.7.3 and 2.7.10.

	Usage:
	python dreem_csv_to_oscar_zeo.py data_in.csv data_out.csv
	"""
	from csv import DictReader, DictWriter
	from datetime import datetime, timedelta


	interface Package
	object Echo : Package
	object Broadcast : Package
	data class Children(val response: Receptionist.Listing) : Package

	val childrenServiceKey: ServiceKey<Echo> = ServiceKey.create(Echo::class.java, "children")

	val father: Behavior<Package> = Behaviors.setup<Package> { ctx ->
	val receptionistAdapter = ctx.messageAdapter(Receptionist.Listing::class.java) { Children(it) }

	import firebase from 'firebase'
	import { filter, map } from 'lodash'
	import { makeExecutableSchema } from 'graphql-tools'

	firebase.initializeApp({
	databaseURL: 'https://grafire-b1b6e.firebaseio.com',
	})

	const mapSnapshotToEntity = snapshot => ({ id: snapshot.key, ...snapshot.val() })
	const mapSnapshotToEntities = snapshot => map(snapshot.val(), (value, id) => ({ id, ...value }))

	package poc

	import org.scalajs.dom

	import scala.scalajs.js
	import scala.scalajs.js.annotation.JSExport

	@js.native
	object WorkerGlobal extends js.GlobalScope {
	def addEventListener(`type`: String, f: js.Function): Unit = js.native

	package sample.hello

	import akka.actor.ActorSystem
	import akka.actor.Props
	import akka.actor.UntypedActor
	import akka.actor.UntypedActorContext
	import akka.actor.ActorPath
	import scala.concurrent.duration.Duration
	import java.util.HashMap
	import akka.actor.ActorSystem