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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 Index - Back - Next
Widget List
Complete list
For a complete list of the widgets available to you, you can list the classes in the widget namespace (as seen below).  Widget and DOMWidget, not listed below, are base classes.
Step1:  Numeric widgets
There are 8 widgets distributed with IPython that are designed to display numeric values.  Widgets exist for displaying integers and floats, both bounded and unbounded.  The integer widgets share a similar naming scheme to their floating point counterparts.  By replacing Float with Int in the widget name, you can find the Integer equivalent.
FloatSlider
Step2:  Sliders can also be displayed vertically.
Step3:  FloatProgress
Step4:  BoundedFloatText
Step5:  FloatText
Step6:  Boolean widgets
There are two widgets that are designed to display a boolean value.
ToggleButton
Step7:  Checkbox
Step8:  Selection widgets
There are four widgets that can be used to display single selection lists, and one that can be used to display multiple selection lists.  All inherit from the same base class.  You can specify the enumeration of selectable options by passing a list.  You can also specify the enumeration as a dictionary, in which case the keys will be used as the item displayed in the list and the corresponding value will be returned when an item is selected.
Dropdown
Step9:  The following is also valid
Step10:  RadioButtons
Step11:  Select
Step12:  ToggleButtons
Step13:  SelectMultiple
Multiple values can be selected with <kbd>shift</kbd> and <kbd>ctrl</kbd> pressed and mouse clicks or arrow keys.
Step14:  String widgets
There are 4 widgets that can be used to display a string value.  Of those, the Text and Textarea widgets accept input.  The Latex and HTML widgets display the string as either Latex or HTML respectively, but do not accept input.
Text
Step15:  Textarea
Step16:  Latex
Step17:  HTML
Step18:  Button
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Python Code:
from IPython.html import widgets
[n for n in dir(widgets) if not n.endswith('Widget') and n[0] == n[0].upper() and not n[0] == '_']
Explanation: Index - Back - Next
Widget List
Complete list
For a complete list of the widgets available to you, you can list the classes in the widget namespace (as seen below).  Widget and DOMWidget, not listed below, are base classes.
End of explanation
widgets.FloatSlider(
    value=7.5,
    min=5.0,
    max=10.0,
    step=0.1,
    description='Test:',
)
Explanation: Numeric widgets
There are 8 widgets distributed with IPython that are designed to display numeric values.  Widgets exist for displaying integers and floats, both bounded and unbounded.  The integer widgets share a similar naming scheme to their floating point counterparts.  By replacing Float with Int in the widget name, you can find the Integer equivalent.
FloatSlider
End of explanation
widgets.FloatSlider(
    value=7.5,
    min=5.0,
    max=10.0,
    step=0.1,
    description='Test',
    orientation='vertical',
)
Explanation: Sliders can also be displayed vertically.
End of explanation
widgets.FloatProgress(
    value=7.5,
    min=5.0,
    max=10.0,
    step=0.1,
    description='Loading:',
)
Explanation: FloatProgress
End of explanation
widgets.BoundedFloatText(
    value=7.5,
    min=5.0,
    max=10.0,
    description='Text:',
)
Explanation: BoundedFloatText
End of explanation
widgets.FloatText(
    value=7.5,
    description='Any:',
)
Explanation: FloatText
End of explanation
widgets.ToggleButton(
    description='Click me',
    value=False,
)
Explanation: Boolean widgets
There are two widgets that are designed to display a boolean value.
ToggleButton
End of explanation
widgets.Checkbox(
    description='Check me',
    value=True,
)
Explanation: Checkbox
End of explanation
from IPython.display import display
w = widgets.Dropdown(
    options=['1', '2', '3'],
    value='2',
    description='Number:',
)
display(w)
w.value
Explanation: Selection widgets
There are four widgets that can be used to display single selection lists, and one that can be used to display multiple selection lists.  All inherit from the same base class.  You can specify the enumeration of selectable options by passing a list.  You can also specify the enumeration as a dictionary, in which case the keys will be used as the item displayed in the list and the corresponding value will be returned when an item is selected.
Dropdown
End of explanation
w = widgets.Dropdown(
    options={'One': 1, 'Two': 2, 'Three': 3},
    value=2,
    description='Number:',
)
display(w)
w.value
Explanation: The following is also valid:
End of explanation
widgets.RadioButtons(
    description='Pizza topping:',
    options=['pepperoni', 'pineapple', 'anchovies'],
)
Explanation: RadioButtons
End of explanation
widgets.Select(
    description='OS:',
    options=['Linux', 'Windows', 'OSX'],
)
Explanation: Select
End of explanation
widgets.ToggleButtons(
    description='Speed:',
    options=['Slow', 'Regular', 'Fast'],
)
Explanation: ToggleButtons
End of explanation
w = widgets.SelectMultiple(
    description="Fruits",
    options=['Apples', 'Oranges', 'Pears']
)
display(w)
w.value
Explanation: SelectMultiple
Multiple values can be selected with <kbd>shift</kbd> and <kbd>ctrl</kbd> pressed and mouse clicks or arrow keys.
End of explanation
widgets.Text(
    description='String:',
    value='Hello World',
)
Explanation: String widgets
There are 4 widgets that can be used to display a string value.  Of those, the Text and Textarea widgets accept input.  The Latex and HTML widgets display the string as either Latex or HTML respectively, but do not accept input.
Text
End of explanation
widgets.Textarea(
    description='String:',
    value='Hello World',
)
Explanation: Textarea
End of explanation
widgets.Latex(
    value="$$\\frac{n!}{k!(n-k)!} = \\binom{n}{k}$$",
)
Explanation: Latex
End of explanation
widgets.HTML(
    value="Hello <b>World</b>"
)
Explanation: HTML
End of explanation
widgets.Button(description='Click me')
Explanation: Button
End of explanation
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