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Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

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Abstraction Suggestions

Summary: use good/established messaging patterns like Enterprise Integration Patterns. Don't make up your own. Don't expose transport implementation details to your application.

Broker

As much as possible, I prefer to hide Rabbit's implementation details from my application. In .Net we have a Broker abstraction that can communicate through a lot of different transports (rabbit just happens to be our preferred one). The broker allows us to expose a very simple API which is basically:

• publish
• request
• start/stop subscription

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#!/usr/bin/env python2.7
#coding: utf-8

import gevent
import gevent.pool


class TestPool(object):

    def __init__(self, maxsize=10):

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Programming Achievements: How to Level Up as a Developer

This gist is part of a blog post. Check it out at:

http://jasonrudolph.com/blog/2011/08/09/programming-achievements-how-to-level-up-as-a-developer

Learn a variety of programming paradigms:

• Write a program in assembly language

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(function b() {

    //The file goes through heuristics that turn object properties into
    //a hash table
    //run with
    //d8 --enable-natives-syntax prop_heuristics.js

    //Note that even if object has fast properties, there are still 2 kinds of
    //fast properties (in and out of object) and only one of them is even faster.

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from time import time
from logging.config import fileConfig
from twisted.internet import epollreactor
epollreactor.install()

from flask import Flask, request

app = Flask(__name__)

fileConfig("logging.ini")

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#!/usr/bin/env python

"""
Tail-Recursion helper in Python.

Inspired by the trampoline function at 
http://jasonmbaker.com/tail-recursion-in-python-using-pysistence

Tail-recursive functions return calls to tail-recursive functions
(themselves, most of the time). For example, this is tail-recursive:

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"""
Inspired by:
    http://eli.thegreenplace.net/2009/08/29/co-routines-as-an-alternative-to-state-machines/
"""

def parse_args(target):
    """A generator that parses a stream of arguments one character at a time.
       As soon as a flag, or flag value pair ("-a" or "-a value") is processed
       the pair is sent off as a tuple to the 'target' generator.

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"""
Simple forking echo server built with Python's SocketServer library. A more
Pythonic version of http://gist.github.com/203520, which itself was inspired
by http://tomayko.com/writings/unicorn-is-unix.
"""

import os
import SocketServer

class EchoHandler(SocketServer.StreamRequestHandler):

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"""
Simple preforking echo server in Python.

Python port of http://tomayko.com/writings/unicorn-is-unix.
"""

import os
import sys
import socket