Brendan Houng bhoung

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

There are so many different ways of building and maintaining Haskell projects.

I'm going to talk about using nix-shell and stack.

First you want a ~/.stack/config.yaml:

 local-bin-path: /home/USERNAME/.stack/bin

This is some red text.

	import asyncio
	import psycopg2

	# dbname should be the same for the notifying process
	conn = psycopg2.connect(host="localhost", dbname="example", user="example", password="example")
	conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)

	cursor = conn.cursor()
	cursor.execute(f"LISTEN match_updates;")

	Source Data Set: https://console.cloud.google.com/bigquery?p=data-to-insights&d=ecommerce&t=web_analytics&page=table


	## TRAIN

	CREATE OR REPLACE MODEL `ecommerce.classification_model_2`
	OPTIONS
	(model_type='logistic_reg', labels = ['will_buy_on_return_visit']) AS

	WITH all_visitor_stats AS (

	from chalice import Chalice
	import boto3
	from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
	import pandas as pd
	from datetime import datetime

	app = Chalice(app_name='Lambda2')

	"""On SNS message from Lambda1, tranform data by dropping duplicates
	and get sentiment"""

	{-# LANGUAGE NoImplicitPrelude #-}
	{-# LANGUAGE OverloadedStrings #-}

	module Main where

	import Protolude hiding (to, (&))
	import qualified System.IO as IO
	import Control.Lens ((<&>), (^.), (.~), (&), set, view)
	import qualified Data.Text as Txt
	import qualified Data.Conduit as C

	# LVDB - LLOOGG Memory DB
	# Copyriht (C) 2009 Salvatore Sanfilippo <[email protected]>
	# All Rights Reserved

	# TODO
	# - cron with cleanup of timedout clients, automatic dump
	# - the dump should use array startsearch to write it line by line
	# and may just use gets to read element by element and load the whole state.
	# - 'help','stopserver','saveandstopserver','save','load','reset','keys' commands.
	# - ttl with milliseconds resolution 'ttl a 1000'. Check ttl in dump!