doojinkang

import unittest

class User:
    number = 1
    articles = []

    # def __init__(self):
    #     self.number = 1
    #     self.articles = []

nmarley

<?php

use BitWasp\Bitcoin\Base58;
use BitWasp\Buffertools\Buffer;
use BitWasp\Buffertools\BufferInterface;
use BitWasp\Buffertools\Buffertools;

require "./vendor/autoload.php";

class XKeyUtil {

nmarley

#! /usr/bin/env ruby

# Utility converting BIP32 extended key version bytes

require './dashutil'

xkey = ARGV.shift
pref = ARGV.shift

# xpub661MyMwAqRbcFnEEbFf8idiyo8QGKiqhTujUmaJsDhAEZ82cEQPMq69Y4V27vGc5rJnxsd26kyHpBJDW72YMjntsmASbdBy1awfGMsUvLCa

ajfisher

Building an ultrasonic sensor backpack

Note: This is a bit of a scratch to see what's involved in getting the ping sensor to work as an I2C backpack.

Acknowledgements

• Jeff Hoeffs [http://github.com/soundanalogous](Sound Analogous) for guidance on using interrupts to do the time measurement on the ATTINY and [https://gist.github.com/soundanalogous/e94c6ebbc457b98b8383](providing a good example to work from)
• [http://github.com/rwaldron](Rick Waldron) for support of the backpack idea and keeping me moving. ;)

Dependencies.

igrr

#include <PubSubClient.h>
#include <ESP8266WiFi.h>

const char* ssid = ".................";
const char* password = "................";

char* topic = "esp8266_arduino_out";
char* server = "iot.eclipse.org";

vincentbernat

#!/usr/bin/env python

"""
SNMP helper for HAproxy implementing EXCELIANCE-MIB with
`pass_persist` protocol. Data are retrieved from multiple instances of
haproxy using HTTP.
"""

def toOid(oid):
    """Convert a string to tuple OID"""

laurenarcher

Terminal Commands:

One webcam:

ffmpeg -f alsa -ac 2 -i hw:1,0 -f v4l2 -s 1280x720 -r 10 -i /dev/video1 -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -r 25 -g 20 -b:v 2500k -codec:a libmp3lame -ar 44100 -threads 6 -b:a 11025 -bufsize 512k -f flv rtmp://a.rtmp.youtube.com/live2/YOURSTREAMNAMEHERE

Two webcam overlay:

ffmpeg -f alsa -ac 2 -i hw:1,0 -f v4l2 -s 1280x720 -r 10 -i /dev/video1 -f v4l2 -s 320x240 -r 10 -i /dev/video0 -filter_complex "[1:v]setpts=PTS-STARTPTS[bg]; [2:v]setpts=PTS-STARTPTS[fg]; [bg][fg]overlay=shortest=1 [out]" -map "[out]" -map 0:a -vcodec libx264 -pix_fmt yuv420p -preset veryfast -r 25 -g 20 -b:v 2500k -codec:a libmp3lame -ar 44100 -threads 6 -b:a 11025 -bufsize 512k -f flv rtmp://a.rtmp.youtube.com/live2/YOURSTREAMNAMEHERE

sr75

Mac Homebrew (RVM/MySQL/Redis) setup

Follow the steps below to setup a local development environment:

XQuartz

Recommended to download latest XQuartz

iTerm2

jackiekazil

How do I round to 2 decimals?

In python, you have floats and decimals that can be rounded. If you care about the accuracy of rounding, use decimal type. If you use floats, you will have issues with accuracy.

All the examples use demical types, except for the original value, which is automatically casted as a float.

To set the context of what we are working with, let's start with an original value.

Original Value

KartikTalwar

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs