Used as Pass Statement inside Functions

Ellipsis is used instead of pass statement inside functions. ‘pass’ replaced by ‘…’ or ‘Ellipsis’. 

Example:

Ellipsis can also be used as a default argument value. Especially when you want to distinguish between not passing in value and passing in None.

Example: 

Output:

<function foo at 0x7fabdeea6e18>

Error while working with ellipsis

We should always use colons for accessing the other dimensions i.e. ‘ : ‘.

Output:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: an index can only have a single ellipsis ('...')

Ellipsis is a Python Object. It has no Methods. It is a singleton Object i.e. , provides easy access to single instances.

Various Use Cases of Ellipsis (…):

• Default Secondary Prompt in Python interpreter.
• Accessing and slicing multidimensional Arrays/NumPy indexing.
• In type hinting.
• Used as Pass Statement inside Functions.