Samat K Jain samatjain

I want to write Rust code on my computer (x86_64, Ubuntu 14.04) and produce arm executables. I found hints on the internet, but not a concise set of instructions on what to do. So I wrote them down exactly:

apt-get install g++-arm-linux-gnueabihf
git clone https://github.com/mozilla/rust.git
mkdir rust/build-cross
cd rust/build-cross
../configure --target=arm-unknown-linux-gnueabihf --prefix=$HOME/local/rust-cross
make -j8 && make install

Pipeline multiprocessing in Python with generators

Similar to mpipe, this short module lets you string together tasks so that they are executed in parallel.

The difference is that it lets you use generators, functions which yield results instead of returning them. Each yielded item gets passed to the next stage.

You can specify that one or more copies of the workers operate on the input queue.

	#!/usr/bin/env python

	import os
	import urllib2
	import json
	import subprocess

	user=None
	repo=None

	sudo apt-get --no-install-recommends -y install software-properties-common
	sudo add-apt-repository -y ppa:kakrueger/openstreetmap
	sudo apt-get update && sudo apt-get -y upgrade
	sudo apt-get --no-install-recommends -y install git unzip curl build-essential postgresql-9.3-postgis-2.1 postgresql-contrib-9.3 proj-bin libgeos-dev apache2 munin munin-node munin-plugins-extra libdbd-pg-perl sysstat iotop ptop osm2pgsql osmctools
	sudo -u postgres createuser -s $USER
	createdb gis
	psql -d gis -c 'CREATE EXTENSION hstore; CREATE EXTENSION postgis;'
	sudo munin-node-configure --sh \| sudo sh
	sudo service munin-node restart
	sudo sed -i "s\|Allow from.*\|Allow from all\|" /etc/munin/apache.conf

	#!/bin/bash
	set -e

	PROGNAME=$(basename $0)

	die() {
	echo "$PROGNAME: $*" >&2
	exit 1
	}

	* {
	font-size: 12pt;
	font-family: monospace;
	font-weight: normal;
	font-style: normal;
	text-decoration: none;
	color: black;
	cursor: default;
	}

	# Get a list of meetings occurring today.
	function get-meetings() {
	$olFolderCalendar = 9
	$ol = New-Object -ComObject Outlook.Application
	$ns = $ol.GetNamespace('MAPI')
	$Start = (Get-Date).ToShortDateString()
	$End = (Get-Date).ToShortDateString()
	$Filter = "[MessageClass]='IPM.Appointment' AND [Start] > '$Start' AND [End] < '$End'"
	$appointments = $ns.GetDefaultFolder($olFolderCalendar).Items
	$appointments.IncludeRecurrences = $true

	"""A simple trade execution report database by using Python dataclass, Redis and JSON.

	- A very simple database for arbitrage trade execution reports.
	- Dataclasses are serialised and deserialised to JSON that is stored in the Redis.
	- There is type validation for members and class-types.
	- Class-types like Decimal are converted back to their original format upon deserialisation.
	- Optional members are supported and the member presence is validated.
	- Past trades can be iterated in either order by creation.
	- A simple CSV exported is provided.

Samat K Jain samatjain

Pipeline multiprocessing in Python with generators

Things that can be in a stage