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  {
   "cells": [
    {
     "cell_type": "heading",
     "level": 1,
     "metadata": {},
     "source": [
      "Using third-party libraries"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "Great programmers don't write all their code themselves. \n",
      "\n",
      "In fact, they write as little as possible, reusing whatever they can."
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Free and Open Source Software"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "There is a lot of FOSS Python code out there. It's a treasure trove for your projects:\n",
      "* Free to use, usually even commercially\n",
      "* Open source means you can study/modify the code and contribute back\n",
      "\n",
      "Usually maintained by volunteers, so:\n",
      "* When you use it, you're encouraged to contribute back\n",
      "* Be extra-friendly and nice to people who aren't getting paid to help you\n",
      "* If you use free Python libraries, consider creating free Python libraries too"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Where to Get Free Python Libraries"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "* When you installed Python, it came with a **standard library**\n",
      "* The Python Package Index has 50,000 free packages for you\n",
      "* GitHub search\n",
      "* Bitbucket search"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Python Package Index"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "Memorize this website URL and visit it every day:\n",
      "https://pypi.python.org\n",
      "\n",
      "(screenshot)\n",
      "\n",
      "Sometimes referred to as \"The Cheese Shop\" because of Monty Python\n",
      "\n",
      "(photo)"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Module vs. Package vs. Library"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "TODO"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Examples of Python Packages"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "Here, we:\n",
      "* Download package X from PyPI\n",
      "* Import and use a function from X\n",
      "\n",
      "TODO\n",
      "\n",
      "...\n",
      "\n",
      "...\n",
      "\n",
      "(10 min using a package)"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "What are GitHub, Gitlab, Bitbucket, Gitorious, Sourceforge, etc.?"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "TODO"
     ]
    },
    {
     "cell_type": "heading",
     "level": 3,
     "metadata": {},
     "source": [
      "Example: Package X"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "(10 min using another package)\n",
      "\n",
      "* Show its PyPI listing\n",
      "* Show its GitHub repo\n",
      "* Click through and show its files and docs"
     ]
    },
    {
     "cell_type": "heading",
     "level": 3,
     "metadata": {},
     "source": [
      "What is Version Control?"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "TODO"
     ]
    },
    {
     "cell_type": "heading",
     "level": 3,
     "metadata": {},
     "source": [
      "DVCS and Collaboration"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "TODO"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "What's in a Python Package?"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "TODO"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Using Third-Party Libraries in Projects"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "Keeping track of requirements\n",
      "\n",
      "Avoiding dependency conflicts"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": []
    }
   ],
   "metadata": {}
  }
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