lopspower

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

Download This sample on Google Play Store

IamAdiSri

First install pip for Python2. Download the get-pip.py file from https://bootstrap.pypa.io/get-pip.py
$ cd <download location>
$ sudo -H python ./get-pip.py

Installing pip also installs Python3
To run Python3
$ python3

Install pip3 by just executing the same file as in the step above, but this time using Python3
$ sudo -H python3 ./get-pip.py

oinopion

-- Create a group
CREATE ROLE readaccess;

-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO readaccess;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess;

-- Grant access to future tables
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess;

mayukh18

Setting up flask app in heroku with a database

The below article will cover the intricacies of setting up databases and heroku in respect to a flask app. This is more like a memo and will have out of sequence instructions or solutions to errors so read thoroughly.

Setting up a database

You'll need the packages

branflake2267

import 'dart:async';

import 'package:flutter/material.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(

noahp

Caveats

• NOTE: I had to reboot after doing this to eliminate display artifacts.
• Also, the dock doesn't appear to support using both of the displayport ports simultaneously :'(
• And MST (https://en.wikipedia.org/wiki/DisplayPort#Multi-Stream_Transport_(MST) ) doesn't seem to work on this dock, so you can't daisy chain monitors.

TLDR

1. download driver from http://www.displaylink.com/downloads/ubuntu
2. unpack

om-henners

"""
Marshmallow wrappers to produce GeoJSON instead of a flat dictionary.
"""
from flask_marshmallow import Marshmallow
import geoalchemy2
from geoalchemy2.shape import from_shape, to_shape
from marshmallow import fields, pre_load, post_dump, ValidationError
import marshmallow_sqlalchemy as msqla
from shapely import geometry

npearce

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

dpapathanasiou

#!/usr/bin/env python

"""
A breadth-first search implementation from:

"Python Algorithms: Mastering Basic Algorithms in the Python Language"

by  	Magnus Lie Hetland

ISBN: 	9781484200551 

nhymxu

gunicorn run:app --workers=9
gunicorn run:app --workers=9 --worker-class=meinheld.gmeinheld.MeinheldWorker

Macbook Pro 2015 Python 3.7

Framework	Server	Req/s	Max latency	+/- Stdev