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IPython Interactive Computing and Visualization Cookbook

You're reading from   IPython Interactive Computing and Visualization Cookbook Harness IPython for powerful scientific computing and Python data visualization with this collection of more than 100 practical data science recipes

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Product type Paperback
Published in Sep 2014
Publisher
ISBN-13 9781783284818
Length 512 pages
Edition 1st Edition
Languages
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Author (1):
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Cyrille Rossant Cyrille Rossant
Author Profile Icon Cyrille Rossant
Cyrille Rossant
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Table of Contents (17) Chapters Close

Preface 1. A Tour of Interactive Computing with IPython FREE CHAPTER 2. Best Practices in Interactive Computing 3. Mastering the Notebook 4. Profiling and Optimization 5. High-performance Computing 6. Advanced Visualization 7. Statistical Data Analysis 8. Machine Learning 9. Numerical Optimization 10. Signal Processing 11. Image and Audio Processing 12. Deterministic Dynamical Systems 13. Stochastic Dynamical Systems 14. Graphs, Geometry, and Geographic Information Systems 15. Symbolic and Numerical Mathematics Index

Adding custom controls in the notebook toolbar

The CSS and JavaScript of the HTML notebook can be customized through the files in ~/.ipython/profile_default/static/custom, where ~ is your home directory, and default is your IPython profile.

In this recipe, we will use these customization options to add a new button in the notebook toolbar that linearly renumbers all code cells.

How to do it...

  1. First, we are going to inject JavaScript code directly in the notebook. This is useful for testing purposes, or if we don't want the changes to be permanent. The JavaScript code will be loaded with that notebook only. To do this, we can just use the %%javascript cell magic as follows:
    In [1]: %%javascript
            // This function allows us to add buttons 
            // to the notebook toolbar.
            IPython.toolbar.add_buttons_group([
            {
                // The button's label.
                'label': 'renumber all code cells',
                
                // The button's icon...
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