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      "<h1 class=\"bigtitle\">Software development tools</h1>"
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      "* Version control systems promote good software engineering practices\n",
      "* In the last few years, Git has emerged as one the best in class\n",
      "* GitHub has completely transformed collaborative software development\n",
      "  - Contributions to open source projects have *exploded* as a result\n",
      "  - Makes software development deeply social: \"Facebook for coders\"\n",
      "* Public repositories are free\n",
      "  - Encourages open collaboration\n",
      "  - All code, history, discussions are public\n",
      "  - Some scientists are uncomfortable with this\n",
      "  - The benefits outweight any downsides\n",
      "  - Most contributions are peer reviewed!\n",
      "* You can have private repositories, but they cost $\n",
      "* Let's have a look at [IPython's GitHub repo](https://github.com/ipython/ipython)"
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      "* Version control systems are not the final answer to reproducibility, but they are a\n",
      "necessary beginning\n",
      "* Developer behavior changes when they know that everything they do is public\n",
      "  - Their reputation is on the line - employers routinely consult GitHub profiles\n",
      "  - Documentation and tests magically appear ;-)\n",
      "* A case study with an undergraduate physics major\n",
      "  - Zach Sailer graduated from Cal Poly in 2013 with a physics B.S.\n",
      "  - He did his senior project on \"Dielectric Behavior of de Vries Liquid Crystals\"\n",
      "  - \"Hey you should post your senior project on GitHub\"\n",
      "  - Reproducibility magically follows...\n",
      "  - Here is his [GitHub repo](https://github.com/Zsailer/calpolythesis)\n",
      "\n",
      "## Science inherits the attributes of the software tools used"
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      "Travis CI (continuous integration)"
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     "source": [
      "* Let's assume that all of us are writing tests for our software ;-)\n",
      "* Everytime you make a change, the test suite should automatically run\n",
      "* You should get an email if a test fails\n",
      "* **That is what Travis CI does**\n",
      "* Let's have a look at the [Travis CI site for IPython](https://travis-ci.org/ipython/ipython)\n",
      "* Language independent, complete control of dependency installation\n",
      "* Free for open source projects, $ for others\n",
      "* Seamless integration with GitHub\n",
      "\n",
      "## Science inherits the attributes of the software tools used"
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      "<h2>Good software development tools and practices allow you to create projects with\n",
      "adoring communities of developers and users</h2>\n",
      "\n",
      "<h2>Impact by attraction rather than promotion</h2>"
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