Python: Split a list every Nth element

Last update on April 19 2025 13:02:28 (UTC/GMT +8 hours)

Split List Every Nth Element

Write a Python program to split a list every Nth element.

Sample Solution:

Python Code:

# Define a list 'C' containing alphabetic characters from 'a' to 'n'
C = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n']

# Define a function 'list_slice' that takes a sequence 'S' and a 'step' value
# The function returns a list of slices from 'S' with a step of 'step'
def list_slice(S, step):
    return [S[i::step] for i in range(step)]

# Call the 'list_slice' function with the list 'C' and a step value of 3
# The function generates slices of 'C' with a step of 3 and returns a list of these slices
# Print the resulting list of slices
print(list_slice(C, 3))

Sample Output:

[['a', 'd', 'g', 'j', 'm'], ['b', 'e', 'h', 'k', 'n'], ['c', 'f', 'i', 'l']]

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to split a list into sublists of equal size.
Write a Python program to extract every nth element from a given list.
Write a Python program to group elements of a list based on index modulo n.
Write a Python program to split a list into two alternating sublists.

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