malefs

#!flask/bin/python
from flask import Flask, jsonify, abort, request, make_response, url_for
from flask.ext.httpauth import HTTPBasicAuth

app = Flask(__name__, static_url_path = "")
auth = HTTPBasicAuth()

@auth.get_password
def get_password(username):
    if username == 'miguel':

malefs

import cv2
import time
import glob
import multiprocessing.pool as mp

def process_img(image_file):
    if '_canny.jpg' not in image_file:
        print 'processing', image_file
        img = cv2.imread(image_file)
        img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

malefs

import cv2
import numpy as np
import urllib.request
import time
import threading
import math


def getPokemon(start, end):
    print("Started worker for range :", start, "to", end)

malefs

Shortcut                  Description
---------------------------------------------------------------

C-o                       Drop to the console
Insert                    Select/deselect file
*                         Invert selection on files
+                         Specify file selection options (including custom pattern)
-                         The same as above, but for deselecting
F5/F6                     Copy/move selected files

malefs

Python Flask + nginx + gunicorn

Setting up a python flask web application using nginx, gunicorn and systemd on a Rasperry Pi

In the following, we assume a working Flask application with the name of SCRIPT_NAME. First we need to install a couple of things:

sudo apt-get update && sudo apt-get upgrade

Installing nginx will fail if apache is running. If your installation breaks half ways, then remove the fragments, stop apache (and I actually suggest removing it in case not needed) and then install nginx again:

sudo apt-get remove nginx* --purge

sudo /etc/init.d/apache2 stop

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Setup

Headless reinstall and update https://raspberrypi.stackexchange.com/a/57023

Enable SSH on the SD Card

• create a text file in /boot/ called ssh

Once you can SSH in:

malefs

#!/usr/bin/env python

import io
import time
import picamera
import picamera.array
import numpy as np
from PIL import Image, ImageDraw

malefs

Here's how to save and load docker images:

Example scenario: To save a docker image from a docker repository and save it as a tar file locally.

1. Save the image as a tarball

docker save repositoryname:tag > repotag.tar

2. Zip the image

malefs

#!/bin/python

import os
from flask import Flask, Response, request, abort, render_template_string, send_from_directory
import Image
import StringIO

app = Flask(__name__)

WIDTH = 1000

malefs

#!/bin/bash

##
#  File:
#    nginx_modsite
#  Description:
#    Provides a basic script to automate enabling and disabling websites found
#    in the default configuration directories:
#      /etc/nginx/sites-available and /etc/nginx/sites-enabled
#    For easy access to this script, copy it into the directory: