Python Program: Checking and handling ellipsis in variables

Last update on April 23 2025 12:57:26 (UTC/GMT +8 hours)

5. Ellipsis Equality Checker

Write a Python program that checks if a variable is equal to ... and prints a message if it matches.

Sample Solution:

Code:

# Define a list with ellipsis as a placeholder
nums = [1, 2, 3, 4, 5, 6, ...]  
for item in nums:
    if item is ...:
        print("Skipping...")
        continue
    print(f"Reading item: {item}")

Output:

Reading item: 1
Reading item: 2
Reading item: 3
Reading item: 4
Reading item: 5
Reading item: 6
Skipping...

The exercise above defines a list 'nums' with 'ellipsis' as a placeholder for unspecified items. In the loop, we check if the current item is 'ellipsis (...)', and if it is, we print "Skipping...". Otherwise, we process the item and print a message indicating that we are processing it. By using 'ellipsis' as a marker for skipped or unspecified items, we can iterate over an unknown number of items.

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to define a variable as Ellipsis and check if another variable is exactly Ellipsis using the 'is' operator, then print the result.
Write a Python function that takes a variable and returns True if it is Ellipsis, otherwise returns False, and test it with various inputs.
Write a Python script to iterate through a list of mixed elements and print a message for each element that is exactly Ellipsis.
Write a Python program to create a list containing several values including Ellipsis and then filter out all elements that are equal to Ellipsis.

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