from IPython.display import display
from IPython.display import (
    display_html, display_jpeg, display_png,
    display_javascript, display_svg, display_latex
)

import io
import pandas

%%writefile data.csv
Date,Open,High,Low,Close,Volume,Adj Close
2012-06-01,569.16,590.00,548.50,584.00,14077000,581.50
2012-05-01,584.90,596.76,522.18,577.73,18827900,575.26
2012-04-02,601.83,644.00,555.00,583.98,28759100,581.48
2012-03-01,548.17,621.45,516.22,599.55,26486000,596.99
2012-02-01,458.41,547.61,453.98,542.44,22001000,540.12
2012-01-03,409.40,458.24,409.00,456.48,12949100,454.53


df = pandas.read_csv("data.csv")
pandas.set_option('display.notebook_repr_html', False)
df

pandas.set_option('display.notebook_repr_html', True)
df

lines = df._repr_html_().splitlines()
print "\n".join(lines[:20])

%load soln/mycircle.py

c = MyCircle()

display_html(c)

display_svg(c)

display_latex(c)

display_javascript(c)

from sympy import Rational, pi, exp, I, symbols
x, y, z = symbols("x y z")

r = Rational(3,2)*pi + exp(I*x) / (x**2 + y)
r

from sympy.interactive.printing import init_printing
init_printing()
r

ip = get_ipython()
for mime, formatter in ip.display_formatter.formatters.items():
    print '%24s : %s' % (mime, formatter.__class__.__name__)


png_f = ip.display_formatter.formatters['image/png']

png_f.for_type?

%matplotlib inline
import matplotlib.pyplot as plt

class AnotherCircle(object):
    def __init__(self, radius=1, center=(0,0), color='r'):
        self.radius = radius
        self.center = center
        self.color = color
    
    def __repr__(self):
        return "<%s Circle with r=%s at %s>" % (
                    self.color,
                    self.radius,
                    self.center,
                )
    
c = AnotherCircle()
c

from IPython.core.pylabtools import print_figure

def png_circle(circle):
    """Render AnotherCircle to png data using matplotlib"""
    fig, ax = plt.subplots()
    patch = plt.Circle(circle.center,
                       radius=circle.radius,
                       fc=circle.color,
                       )
    ax.add_patch(patch)
    plt.axis('scaled')
    data = print_figure(fig, 'png')
    # We MUST close the figure, otherwise IPython's display machinery
    # will pick it up and send it as output, resulting in a double display
    plt.close(fig)
    return data

c = AnotherCircle()
print repr(png_circle(c)[:10])

png_f.for_type(AnotherCircle, png_circle)

c2 = AnotherCircle(radius=2, center=(1,0), color='g')
c2

display_png(c2)

# for demonstration purpose, I do the same with a circle that has no _repr_javascript method
class MyNoJSCircle(MyCircle):
    
    def _repr_javascript_(self):
        return

cNoJS = MyNoJSCircle()

cNoJS

for i in range(3):
    display(cNoJS)

print "I should see a nice html circle in web-app, but"
print "nothing if the format I'm viewing the notebook in"
print "does not support html"
display_html(cNoJS)

print "Whatever the format I will see a representation"
print "of my circle"
display(cNoJS)

print "Same if I return the object"
cNoJS

print "But not if I print it"
print cNoJS