Very Simple Demo Notebook

Code Execution
Menus and Controls
Visualizing HTML
Keyboard shortcuts
Inline help

First and foremost, the notebook is great for interactively running code.



In [ ]:

    
print "foo bar"

There's tab completion, and integrated help...



In [ ]:

    
import os

os.path.abspath?
os.path.abspath()

If you make an error, the feedback is nicely formatted...



In [ ]:

    
1/0

There's even an integrated debugger! (%debug magic)



In [ ]:

    
%debug 
for div in range(0,10)[::-1]:
    print 10.0/div



In [ ]:

    
range(0,10)

This is a browser! You're not limited to just displaying text:

![awwbat](PresentationImages/awwbat.gif)

Not by a long shot. This is just a teaser, but you can inline display just about anything you can see in a browser.



In [ ]:

    
# display images inline, as well as other magic
%pylab inline           
# Get a list of evenly spaced numbers from 0-5
x = linspace(0, 5, 10)
# Get a list of all of those squared
y = x ** 2
# Plot x vs y in red
plot(x, y, 'r')

And there are keyboard shortcuts for everything, so you can do incredibly rapid development.

Essential Shortcuts

Esc/Enter: Mode Switch
j/k: Move up/down
Execute Cells
- Shift-Enter: Run and go down
- Alt-Enter: Run and make new
- Control-Enter: Run in place
a/b: Insert cell above/below
x: cut cell
Cell mode switch:
- r: raw
- m: markdown
- y: python code

And finally, showing in a single quick demo, you can

run shell commands
convert output to HTML (and many other formats.)



In [ ]:

    
!ipython nbconvert "Quick Demo.ipynb" --to html
!open "Quick Demo.html"