Python bin() function


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The bin() function returns the binary representation of the integer as a string.

Its syntax is as follows:

ParameterDescription
numberAny numeric value

Here is an example:

bin() with User-defined object

To use bin() with user-defined objects, we have to first overload the __index__() method.
The __index__() method is used to coerce an object to an integer, in the context of slicing and index. For instance, consider the following:

When we access items in a list using indexing and slicing, internally Python calls __index__()  method of the int  object.

In addition to bin() , the __index__() method is also called when you call hex(), and oct()  on the object. Here is

 


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