christian-oudard

from __future__ import print_function
"""
Utilities for 256 color support in terminals.

Adapted from:
http://stackoverflow.com/questions/1403353/256-color-terminal-library-for-ruby

The color palette is indexed as follows:

0-15: System colors

amundo

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# see http://www.fileslip.net/news/2010/02/04/language-id-project-the-basic-algorithm/

from math import sqrt 

you = {'pennies': 1, 'nickels': 2, 'dimes': 3, 'quarters': 4 }
me = {'pennies': 0, 'nickels': 3, 'dimes': 1, 'quarters': 1 }
abby = {'pennies': 2, 'nickels': 1, 'dimes': 0, 'quarters': 3 }

tinogomes

#!/bin/bash
#
BASE=/tmp
PID=$BASE/app.pid
LOG=$BASE/app.log
ERROR=$BASE/app-error.log

PORT=11211
LISTEN_IP='0.0.0.0'
MEM_SIZE=4

defnull

mkdir heroku
cd heroku/
virtualenv --no-site-packages env
source env/bin/activate
pip install bottle gevent
pip freeze > requirements.txt

cat >app.py <<EOF
import bottle
import os

Bengt

FedoraSetup

This installation guide documents my standard procedure of a system setup with Fedora. Naturally, everyone will not agree at some point on my way of doing this. Please take this with a grain of salt and use it as a guide to avoid forgetting things, as I do myself.

Rationale

I use my computer all day everyday. After a while I used every application I will ever use and configured upon first usage. The configuration disrupts but the workflow leading to using the application first. To avoid configuration induced disruptions, the configuration could be done upfront. This is a collection of configurations and other steps involved in setting up a new system with Fedora.

Problem Statement

ChickenProp

Introduction

The MCP23017 is an I/O expander chip. It has 16 GPIO pins which you can control using an I2C interface using two pins from a Raspberry Pi, plus a power source and sink (which can also come from the Pi). It's not quite as simple as directly controlling the Pi's GPIO pins, but it's not complicated, either.

You need to install i2c-tools, which is probably in your distribution's package manager. You also need a kernel with I2C support; you might need to modprobe i2c-dev. It would presumably be possible to do without either of these things, and bitbang the I2C protocol over GPIO, but I don't understand the protocol well enough to try.

On pin numbering: if you like, you can refer to the datasheet for the MCP23017. There's a small dot in one corner of the chip, with a semi-circular cut-out at that end. The pin near

echohack

class APIWrapper:
    
    #snippet...
    
    def poll_api(self, tries, initial_delay, delay, backoff, success_list, apifunction, *args):
        time.sleep(initial_delay)
        for n in range(tries):
            try:
                status = self.get_status()
                if status not in success_list:

dnmellen

# encoding: utf-8

# Copyright 2013 Diego Navarro Mellén. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are
# permitted provided that the following conditions are met:
#
#  1. Redistributions of source code must retain the above copyright notice, this list of
#     conditions and the following disclaimer.
#

letmaik

from __future__ import division
import collections
import numpy as np
import matplotlib
import matplotlib.pyplot as plt
from scipy.spatial import Delaunay, KDTree

# an adaptation of https://stackoverflow.com/a/15783581/60982
# using ideas from https://stackoverflow.com/a/9471601/60982

macournoyer

$ python xor.py
Training:
  Epoch   0   MSE: 1.765
  Epoch 100   MSE: 0.015
  Epoch 200   MSE: 0.005
  * Target MSE reached *
Evaluating:
  1 XOR 0 = 1 ( 0.904)   Error: 0.096
  0 XOR 1 = 1 ( 0.908)   Error: 0.092
  1 XOR 1 = 0 (-0.008)   Error: 0.008