Python: Create the running product of an iterable

Last update on March 29 2025 13:02:41 (UTC/GMT +8 hours)

2. Running Product Iterator

Write a Python program that generates the running product of elements in an iterable.

Sample Solution:

Python Code:

from itertools import accumulate
import operator
def running_product(it):
    return accumulate(it,operator.mul)

#List
result = running_product([1,2,3,4,5,6,7])
print("Running product of a list:")
for i in result:
    print(i)

#Tuple
result = running_product((1,2,3,4,5,6,7))
print("Running product of a Tuple:")
for i in result:
    print(i)

Sample Output:

Type of the new iterator:
<class 'itertools.chain'>
Running product of a list:
1
2
6
24
120
720
5040
Running product of a Tuple:
1
2
6
24
120
720
5040

For more Practice: Solve these Related Problems:

• Write a Python program to compute the running product of elements in an iterable, resetting the product each time a zero is encountered.
• Write a Python program to generate a running product iterator over a list and then apply a logarithm function to each cumulative product using map.
• Write a Python program to create an iterator that yields the running product and stops when the product exceeds a specified threshold.
• Write a Python program to compute the running product of only the positive numbers in an iterable using itertools.accumulate and filter out negatives.

Python Code Editor:

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