Jupyter Notebook Introduction

History

IPython

Initial Release: 2001
"Command shell for interactive computing in multiple programming languages." Wikipedia.org
Interactive, parallelism, history, environment, etc...

Notebook

Interactive computing environment.
HTML / JavaScript with a kernel (Python (default), R, Julia, Haskell, 103 more...).
JSON (orderd list of input/output cells)
May contain live code, text, mathematics, plot, and rich media.
Built on IPython, ØMQ, Tornado, jQuery, Bootstrap, and MathJax.

Modes:

Command
Edit

Shortcuts

Key(s)	Action
H	show shortcut menu
A	add cell above
B	add cell below
M	markdown cell
Y	code cell
DD	delete cell
Shift + Enter	run cell on move to next
Ctrl + Enter	run cell on remain
Alt + Enter	run cell and move to newly created cell

Editing

Key(s)	Action
Enter	go into insert mode
Escape	exit insert mode
Tab	code completion
Shift + Tab	tooltips (3 versions)
Ctrl + S	save

Markdown:

Headings (#)
Lists (*)
Blockquote

This is an example.
Horizontal Rule (---)

Embedded code (three backticks) --> this text is inline code

def my_function():
    """My syntax is highlighted for the Python language."""
    pass

LaTeX $e^{i\pi} + 1 = 0$

$F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx$

External links: [name](https://some_website.com)
Internal links: [name](#the_last_cell) Example

Raw:

this is a raw cell `~!@#$%^&*()[]\{}|;':",./<>?

Code:



In [35]:

    
some_global_variable = 6

def my_function(arg):
    """This is a docstring."""
    some_global_variable = 1
        
    return some_global_variable



In [36]:

    
print(my_function(5))



In [37]:

    
some_global_variable









    Out[37]:





6

Magic

% or %%
debug, time, timeit, run, and more...



In [4]:

    
%time some_list = [x**x for x in range(9001)]









    



Wall time: 5.52 s



In [12]:

    
!sudo python3.6 -m pip install matplotlib









    



[sudo] password for r:



In [39]:

    
%matplotlib notebook
import matplotlib, numpy, pandas, seaborn
from matplotlib import pyplot as plt

ts = pd.Series(numpy.random.randn(1000), index=pandas.date_range('1/1/2000', periods=1000))
ts = ts.cumsum()
df = pandas.DataFrame(numpy.random.randn(1000, 4), index=ts.index,
                  columns=['A', 'B', 'C', 'D'])
df = df.cumsum()
df.plot(); plt.legend(loc='best')









    














    











    Out[39]:





<matplotlib.legend.Legend at 0x7fc12340a358>

Bash



In [7]:

    
!dir









    



 Volume in drive C is Windows
 Volume Serial Number is 6A27-6402

 Directory of C:\Users\randall.white\Notebooks\DFW_Pythoneers

02/20/2017  12:41 PM    <DIR>          .
02/20/2017  12:41 PM    <DIR>          ..
02/15/2017  08:21 AM    <DIR>          .ipynb_checkpoints
02/15/2017  08:21 AM             5,677 2017-02-15-TUTORIAL-Lexical-Closing.ipynb
02/20/2017  12:41 PM            31,411 2017-03-Presentation-Jupyter-Notebook.ipynb
               2 File(s)         37,088 bytes
               3 Dir(s)  173,638,197,248 bytes free

HTML



In [16]:

    
from IPython.core.display import display, HTML
display(HTML("<style>.container { width:100% !important; }</style>"))



In [17]:

    
from IPython.core.display import HTML
css = open('style-table.css').read() + open('style-notebook.css').read()
HTML('<style>{}</style>'.format(css))









    



---------------------------------------------------------------------------
FileNotFoundError                         Traceback (most recent call last)
<ipython-input-17-6fab06cda22c> in <module>()
      1 from IPython.core.display import HTML
----> 2 css = open('style-table.css').read() + open('style-notebook.css').read()
      3 HTML('<style>{}</style>'.format(css))

FileNotFoundError: [Errno 2] No such file or directory: 'style-table.css'

Embed YouTube videos.



In [18]:

    
from IPython.display import YouTubeVideo
YouTubeVideo('HW29067qVWk')









    Out[18]:

Configuration / Environment



In [19]:

    
!ipython profile locate









    



/home/r/.ipython/profile_default



In [5]:

    
# Otherwise run: !ipython profile create

# Sample output:

# [ProfileCreate] Generating default config file: 'C:\\Users\\randall.white\\.ipython\\profile_default\\ipython_config.py'
# [ProfileCreate] Generating default config file: 'C:\\Users\\randall.white\\.ipython\\profile_default\\ipython_kernel_config.py'

Notebook specific configuration values

Example location in Windows:

C:\Users\randall.white.jupyter\jupyter_notebook_config.py

Resources



In [ ]:



In [20]:

    
import time



In [22]:

    
for i in range(5):
    time.sleep(.5)
    print(i)



In [23]:

    
time.sleep(10)
print("I'm waiting to see this...")









    



---------------------------------------------------------------------------
KeyboardInterrupt                         Traceback (most recent call last)
<ipython-input-23-0149fd37a56b> in <module>()
----> 1 time.sleep(10)
      2 print("I'm waiting to see this...")

KeyboardInterrupt:



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Go Back Up

The cell below this contains "" which becomes invisible when rendered in Markdown. This cell is of type RAW, so I can type anything here and not worry about escaping it.