Python: Generate an infinite cycle of elements from an iterable

Last update on April 22 2025 12:55:11 (UTC/GMT +8 hours)

5. Infinite Cycle of Elements

Write a Python program to generate an infinite cycle of elements from an iterable.
Note: Iterable should be a list or a string or a dictionary, etc.

Sample Solution:

Python Code:

import itertools as it
def cycle_data(iter):
    return it.cycle(iter)
# Following  loops will run for ever    
#List
result = cycle_data(['A','B','C','D'])
print("The said function print never-ending items:")
for i in result:
    print(i)

#String
result = cycle_data('Python itertools')
print("The said function print never-ending items:")
for i in result:
    print(i)

Sample Output:

The said function print never-ending items:
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
....

For more Practice: Solve these Related Problems:

• Write a Python program to generate an infinite cycle from an iterable and break the cycle after a specific number of repetitions.
• Write a Python program to create an infinite cycle of elements and simultaneously count the cycles using itertools.cycle and enumerate.
• Write a Python program to cycle through an iterable infinitely, but only yield elements that satisfy a given predicate.
• Write a Python program to create an infinite cycle of elements and apply a transformation to each element on every cycle using map.

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Next: Write a Python program to make an iterator that drops elements from the iterable as soon as an element is a positive number.

Python Code Editor:

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