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   {
        "name": "answer_and_sources",
        "description": "Gets an answer and cites the relevant sources used to provide the answer.",
        "parameters": {
            "type": "object",
            "properties": {
                "answer": {
                    "type": "string",
                    "description": "The answer to the user's question.",
                },

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Kubernetes on DigitalOcean with CoreOS

Let's look at an example of how to launch a Kubernetes cluster from scratch on DigitalOcean, including kubeadm, an Nginx Ingress controller, and Letsencrypt certificates.

Overview

Environment

We'll be creating a four-node cluster (k8s-master, k8s-000...k8s-002), load balancer, and ssl certificates.

Table of Contents

1. Install Kubernetes

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javascript:void%20function(){(function(t){t.extend(t.fn,{tableToJSON:function(){var%20n=this,r=t(%22thead%20th%22,n).map(function(n,r){return%20t(r).text().trim().toLowerCase()});return%20t(%22tbody%20tr%22,n).map(function(n,e){var%20o=t(e),a={};return%20t(%22td%22,o).each(function(n,e){var%20o=r[n];a[o]=t(e).text().trim()}),a}).toArray()}})})(jQuery)}();

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from sre_parse import Pattern, SubPattern, parse as sre_parse
from sre_compile import compile as sre_compile
from sre_constants import BRANCH, SUBPATTERN


class Scanner(object):

    def __init__(self, tokens, flags=0):
        subpatterns = []
        pat = Pattern()

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Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

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Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

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// This bit is important.  It detects/adds XMLHttpRequest.sendAsBinary.  Without this
// you cannot send image data as part of a multipart/form-data encoded request from
// Javascript.  This implementation depends on Uint8Array, so if the browser doesn't
// support either XMLHttpRequest.sendAsBinary or Uint8Array, then you will need to
// find yet another way to implement this. (This is left as an exercise for the reader,
// but if you do it, please let me know and I'll integrate it.)

// from: http://stackoverflow.com/a/5303242/945521

if ( XMLHttpRequest.prototype.sendAsBinary === undefined ) {

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# Orignal version taken from http://www.djangosnippets.org/snippets/186/
# Original author: udfalkso
# Modified by: Shwagroo Team and Gun.io

import sys
import os
import re
import hotshot, hotshot.stats
import tempfile
import StringIO

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import httplib
import ssl
import socket
import sys
import urllib2

class HTTPSConnectionV3(httplib.HTTPSConnection):
    def __init__(self, *args, **kwargs):
        httplib.HTTPSConnection.__init__(self, *args, **kwargs)