AlecZadikian9001

# Tested in Ubuntu 14, requires pv
copy ()
{
    echo Copying $1 to $2
    cat $1 | pv -a -r -b -p -e -s $(stat --printf="%s" $1) > $2
}

AlecZadikian9001

// Finally figured out how to interact with contracts without running a Geth node or any kind of daemon on my machine.
// Running a Geth node was way harder than I thought. It worked sometimes, randomly broke other times... I lost interest.

// Prerequisites:
// - web3-js 1.0.0, NOT the older versions that have different APIs.
// - An Ethereum wallet for which you have the private key.
// - A public web3-rpc-compatible node. Infura is an easy one: https://infura.io/signup
// - You don't trust the node with your wallet private key 
//      but do trust that it won't lie to you (maybe you shouldn't).

AlecZadikian9001

# Created by AlecZ
# Tested with Python 3.4
#
# These example classes make it easy to multiprocess* in Python, 
#   useful if you want to take advantage of multiple cores on a single machine
#   or run lots of low-CPU-usage but blocking tasks like web scrapers
#   without configuring a more permanent solution like Celery workers.
#
# * Actually runs multiple Python processes to take advantage of more cores, 
#   unlike Python's `multithreading` module helpers that actually don't run things in parallel.