JoelQ

Elm Types Glossary

There's a lot of type terminology and jargon going around when discussing types in Elm. This glossary attempts to list some of the most common type terms along with synonyms, terms from other language communities, examples, and links to more detailed articles on each topic.

• Custom Type
• Constructor
• Unit Type

IAmSuyogJadhav

import cv2

image = cv2.imread('test.jpg')
overlay = image.copy()

x, y, w, h = 10, 10, 10, 10  # Rectangle parameters
cv2.rectangle(overlay, (x, y), (x+w, y+h), (0, 200, 0), -1)  # A filled rectangle

alpha = 0.4  # Transparency factor.

leymannx

Install iTerm 2

Download, unzip and drag to your Applications directory.

https://www.iterm2.com/downloads.html

Install Fish

docPhil99

#Capture and stream a webcam To capture using the iSight camera on a Mac, or infact any other webcam connected to the Mac, we can use FFmpeg. First get a list of the devices installed.

ffmpeg -f avfoundation -list_devices true -i "" 

This will list the aviable video and audio devices.

The below will capture at 30fps and the set video size to a file. ffmpeg -f avfoundation -framerate 30 -video_size 640x480 -i "0:none" out.avi

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

ericgj

import dramatiq

@dramatiq.actor
def sequence(environ, sequence, environ_key=None, result_key=None):
    """ could be anything, just used to kick off a sequence """
    return {
        u'environ': environ,
        u'count': len(sequence)
    }

mariocj89

Introduction

When applications are running in production, they become black boxes that need to be traced and monitored. One of the simplest, yet main, ways to do so is logging. Logging allows us - at the time we develop our software - to instruct the program to emit information while the system is running that will be useful for us and our sysadmins.

notdodo

#!/bin/bash

################################################################
# Install a printer on Arch Linux with cups using command line #
# Used for a HP PSC 1510 with default driver                   #
################################################################

sudo pacman -S cups
sudo systemctl start org.cups.cupsd

pandafulmanda

Python3 Virtualenv Setup

Requirements

• Python 3
• Pip 3

$ brew install python3

defektive

Dependecies

sudo apt-get install git \
                      xcb \
                      libxcb-util0-dev \
                      libxcb-ewmh-dev \
                      libxcb-randr0-dev \
                      libxcb-icccm4-dev \
                      libxcb-keysyms1-dev \