In [2]:

    

from ipywidgets import interact, interactive, fixed
import ipywidgets as widgets


    

In [2]:

    

def f(x):
    return x


    

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interact(f, x=True); # interact will return an interactive element based on the params you pass


    

    






True

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interact(f, x=[1, 3]); # include a semi colon to suppress out cells in jupyter


    

    






3

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interact(f, x=10);


    

    






-10

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interact(f, x='hello');


    

    






u'hello'

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@interact(x=True, y=1.0)
def g(x,y):
    return (x,y)


    

    






(True, 1.0)

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def h(p,q):
    return (p,q)


    

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interact(h, p=5,q=fixed(30))


    

    






(9, 30)

In [16]:

    

# this is specifying which widget is going to be used
# previously, we let the input type determine what would be returned
# in this case, we specifically say to use the widgets.IntSlider
# and to have a min/max value, along with a step and a starting value
interact(f, x = widgets.IntSlider(min=0, max=20, step=2), value = 0);


    

    






0

In [21]:

    

interact(f, x=('apple', 'orange'));


    

    






u'orange'

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interact(f, x=(0.0, 8, 0.1));


    

    






2.0

In [28]:

    

@interact(x=(0.0,10.0,0.01))
def h(x=5.5):
    return x


    

    






5.5

In [31]:

    

interact(f, x={'one':1, 'two':2});


    

    






1

In [4]:

    

def multi(x):
    return x**2


    

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interact(multi, x={'one':1, 'two':2, 'three':3, 'four':4});


    

    






4

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def gef(a,b):
    return a+b


    

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w = interactive(gef,a=10, b=20)


    

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type(w)


    

    
Out[8]:





ipywidgets.widgets.widget_box.Box

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w.children


    

    
Out[9]:





(<ipywidgets.widgets.widget_int.IntSlider at 0x10c981c90>,
 <ipywidgets.widgets.widget_int.IntSlider at 0x10c901850>)

In [16]:

    

from IPython.display import display as dis
dis(w)


    

    






30

In [17]:

    

def max_val(arr):
    return reduce(lambda x,y: x if x>y else y, arr)


    

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lst = [234, 232, 12, 51, 59, 1000]
max_val(lst)


    

    
Out[18]:





1000

In [67]:

    

interact(max_val, arr=list([94, 390, 8762, 980]));


    

    






u'8'

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def greeting(label):
    return 'Hello, {w}'.format(w=label)


    

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interact(greeting, x='world');


    

    






'Hello, world'

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@interact(x='Neighbor')
def greeting_mild(x):
    return 'Would you like to be my {n}'.format(n=x)


    

    






'Would you like to be my Neighbor'

In [22]:

    

greeting_mild("")


    

    
Out[22]:





'Would you like to be my '

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