Introduction to IPython & Notebook
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IPython is an interactive Python shell, it provides tools for interactive and parallel computing that are widely used in the scientific world. It can also benefit any other Python developer.
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Introduction to IPython & Notebook
- 1. Introduction to IPython & Notebook Areski Belaid <areski@gmail.com> github.com/areski twitter.com/areskib
- 2. Introduction to IPython - Fernando Perez started IPython in 2001, he wanted a better interactive Python interpreter - 259 lines of code, written in few hours https://gist.github.com/1579699 - Today: 78,481 lines of code & more than 100 contributors in the last 12 months http://www.ohloh.net/p/ipython
- 3. What is IPython? IPython is an interactive shell for Python ● additional shell syntax ● introspection ● tab completion ● rich history ● better debugging ● parallel computing
- 5. Install IPython http://ipython.org/ipython- doc/stable/install/install.html $ mkvirtualenv testipython $ pip install ipython - You could also use easy_install, but do you want to, really?
- 6. Hands On IPython - Shell $ ls, pwd, !vim - Code completion $ import os $ os.[press tab] - Introspection $ os? $ os?? - History > use the key up and down - Execute previous command $ _i, _ii, _iii : Previous, next previous, next next previous input - Load Code > %loadpy - Traceback and Debugger %pdb
- 7. Integration with your IDE - Vim https://github.com/ivanov/vim-ipython - Sublime Text https://github.com/iambus/SublimeIPython - TextMate http://wiki.ipython. org/Cookbook/Using_IPython_with_TextMate
- 8. NOTEBOOK
- 9. What is Notebook? A web-based application that can execute code and also contain rich text and figures, mathematical equations and arbitrary HTML - a web-based shell to an IPython - a mix of notes, code, html, images, video, ... - a great tool for debugging, teaching - has ability to save, edit and delete “notebooks”
- 10. Install Notebook Let's forget about easy_install, seriously? $ pip install ipython $ pip install pyzmq $ pip install tornado $ ipython notebook For some of the online examples : $ pip install numpy $ apt-get install libatlas-base-dev gfortran $ pip install scipy $ pip install matplotlib
- 11. Hands on Notebook $ ipython notebook - Cell-based execution workflow - Load previous code - Share IPython Notebook http://nbviewer.ipython.org/
- 12. Notebook - Django Extension Notebook is not only for Physicists !!! - Use it with Django: https://github.com/django-extensions/django-extensions/pull/234 $ ./manage.py shell_plus --notebook There is a little bug with the last IPython, that you can fix easily: export PYTHONPATH=/home/areski/public_html/django/MyProjects/newfies-dialer Add this in your settings.py: IPYTHON_ARGUMENTS = [ '--ext', 'django_extensions.management.notebook_extension', '--debug' ]
- 13. Conclusion - IPython Introspection, additional shell, tab completion, rich history, parallel computer, etc... - Notebook All the benefits of IPython on the web IPython received a Grant Sloan Foundation grant: IPython has been awarded a $1.15 million grant from the Alfred P. Sloan Foundation. This will support several core developers, allowing them to focus on building the IPython Notebook into a tool for open, collaborative, reproducible scientific computing. The Future is Bright !!!
- 14. References - IPython : Python at your fingertips: http://www.youtube.com/watch?v=26wgEsg9Mcc - Using IPython Notebook with Django: http://andrewbrookins.com/python/using-ipython-notebook-with-django/ - IPython Docs: http://ipython.org/documentation.html - IPython Notebook Viewer: http://nbviewer.ipython.org/
- 15. Hope you enjoyed it! slideshare.net/areski github.com/areski twitter.com/areskib