- You can store a price in a floating point variable.
- All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
- All currencies are subdivided in decimal units (like dinar/fils)
- All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
- All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
- Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
- For any currency you can have a price of 1. (ZWL)
- Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)
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''' | |
This is an example of how to send data to Slack webhooks in Python with the | |
requests module. | |
Detailed documentation of Slack Incoming Webhooks: | |
https://api.slack.com/incoming-webhooks | |
''' | |
import json | |
import requests |
I wrote this gist to record the steps I followed to get docker running in my Raspberry Pi 3. The ARM ported debian version (Jessie) comes with an old version of docker. It is so old that the docker hub it tries to interact with doesn't work anymore :)
Hopefully this gist will help someone else to get docker running in their Raspberry Pi 3.
From original instructions at http://blog.hypriot.com/post/run-docker-rpi3-with-wifi/
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#!/usr/bin/env stack | |
{- stack | |
--resolver lts-7.3 | |
--install-ghc | |
runghc | |
--package base | |
--package bytestring | |
--package dns | |
--package http-client | |
--package http-types |
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# create sdk folder | |
export ANDROID_HOME=/opt/android-sdk-linux | |
sudo mkdir -p $ANDROID_HOME | |
# install openjdk | |
sudo apt-get install openjdk-8-jdk | |
# download android sdk | |
cd $ANDROID_HOME | |
sudo wget https://dl.google.com/android/repository/tools_r25.2.3-linux.zip |
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require('dotenv').config(); | |
const request = require('request'); | |
const credentials = `${process.env.CONSUMER_KEY}:${process.env.CONSUMER_SECRET}`; | |
const credentialsBase64Encoded = new Buffer(credentials).toString('base64'); | |
request({ | |
url: 'https://api.twitter.com/oauth2/token', | |
method:'POST', | |
headers: { |
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#!/bin/bash | |
# Retrieves the installed `pacman` package lists and syncs them with my remote git repo | |
# This program is free software: you can redistribute it and/or modify | |
# it under the terms of the GNU General Public License as published by | |
# the Free Software Foundation, either version 3 of the License, or | |
# (at your option) any later version. | |
# This program is distributed in the hope that it will be useful, | |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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{ pkgs ? import <nixpkgs> {} }: | |
with pkgs; | |
let | |
inherit (lib) optional optionals; | |
erlangDrv = { mkDerivation }: | |
mkDerivation rec { | |
version = "21.0"; |
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with import <nixpkgs> { | |
overlays = map (uri: import (fetchTarball uri)) [ | |
https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz | |
]; | |
}; | |
stdenv.mkDerivation { | |
name = "rust-wasm"; | |
buildInputs = [ | |
cargo-web |
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