bradtraversy

Pipenv Cheat Sheet

Install pipenv

pip3 install pipenv

Activate

pipenv shell

whitehorse0

config:
  target: "http://localhost:8000"
  http: 
    timeout: 10 # Responses have to be sent within 10 seconds or the request will be aborted
  processor: "./processor.js"

  phases:
    # Create 100 virtual users every second for 60 seconds
    - duration: 60 # seconds
      arrivalRate: 100 # virtual users

colmmacc

import sys

# choose() is the same as computing the number of combinations. Normally this is
# equal to:
#
#   factorial(N) / (factorial(m) * factorial(N - m))
#
# but this is very slow to run and requires a deep stack (without tail
# recursion).
#

sysboss

#!/usr/bin/env python3
#
# Query AWS Athena using SQL
# Copyright (c) Alexey Baikov <sysboss[at]mail.ru>
#
# This snippet is a basic example to query Athen and load the results
# to a variable.
#
# Requirements:
# > pip3 install boto3 botocore retrying

jamstooks

My AWS Cloud9 Setup for Python/Django and Node

Getting setup

sudo yum -y update

I'm not a big fan of their default bash prompt:

echo "export PS1='[\D{%F %T}]\n\[\e]0;\w\a\]\[\e[32m\]\u:\[\e[33m\]\w\[\e[0m\]\n\$ '" >> ~/.bashrc

source ~/.bashrc

mohansunkara

@RunWith(JUnit4.class)
public class ExceptionHandlingTests {

    class ShortCircuitCF<T> {
        final CompletableFuture<T> result = new CompletableFuture<>();
        final CompletableFuture<T> notCompleted = new CompletableFuture<>();
        CompletableFuture<T> propagate(T value) {
            result.complete(value);
            return notCompleted;
        }

mbinna

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

terabyte

Prologue

I wrote this answer on stackexchange, here: https://stackoverflow.com/posts/12597919/

It was wrongly deleted for containing "proprietary information" years later. I think that's bullshit so I am posting it here. Come at me.

The Question

Amazon is a SOA system with 100s of services (or so says Amazon Chief Technology Officer Werner Vogels). How do they handle build and release?

BeatriceMoissinac

// vim: syntax=shell

$JAR=/usr/lib/spark/lib/spark-examples.jar
$KEY=MoissinB

# Create cluster with 1st step
aws emr create-cluster  --profile $KEY \
                        --name "Moissinb Cluster" \
                        --release-label emr-5.10.0 \
                        --applications Name=Spark \

bradmontgomery

Copyright 2020 Brad Montgomery

Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
and associated documentation files (the "Software"), to deal in the Software without restriction, 
including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial 
portions of the Software.