Python: Generate an infinite cycle of elements from an iterable
Python Itertools: Exercise-5 with Solution
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 ....
Python Code Editor:
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Previous: Write a Python program to construct an infinite iterator that returns evenly spaced values starting with a specified number and step.
Next: Write a Python program to make an iterator that drops elements from the iterable as soon as an element is a positive number.
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Python: Tips of the Day
Inverts a dictionary with non-unique hashable values:
Example:
def tips_collect_dictionary(obj): inv_obj = {} for key, value in obj.items(): inv_obj.setdefault(value, list()).append(key) return inv_obj ages = { "Owen": 25, "Jhon": 25, "Pepe": 15, } print(tips_collect_dictionary(ages))
Output:
{25: ['Owen', 'Jhon'], 15: ['Pepe']}
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