Interact widget

Interact is the basic widget which is appears to be used to derive all other widgets. It has variable arguments, and depending on the arguments, will portray a different kind of user input control.

Interact widget slidebar

We can use interact to produce a slidebar by passing in an extent. For example, we have the following script:

#imports 
from ipywidgets import interact 
 
# define a function to work with (cubes the number) 
def myfunction(arg): 
    return arg+1 
 
#take values from slidebar and apply to function provided 
interact(myfunction, arg=9); 

Note

Note that the semicolon following the interact function call is required.

We have a script which does the following:

•  References the package we want to use
•  Defines a function that is called for every user input of a value
•  Calls to interact, passing our handler and a range of values

 

When we run this script, we get a scrollbar that is modifiable by the user:

The user is able to slide the vertical bar over the range of values...