Python: Insert a specified element in a given list after every nth element
Python List: Exercise - 178 with Solution
Write a Python program to insert a specified element in a given list after every nth element.
Sample Solution:
Python Code:
def inset_element_list(lst, x, n):
i = n
while i < len(lst):
lst.insert(i, x)
i+= n+1
return lst
nums = [1, 3, 5, 7, 9, 11,0, 2, 4, 6, 8, 10,8,9,0,4,3,0]
print("Original list:")
print(nums)
x = 20
n = 4
print("\nInsert",x,"in said list after every",n,"th element:")
print(inset_element_list(nums, x, n))
chars = ['s','d','f','j','s','a','j','d','f','d']
print("\nOriginal list:")
print(chars)
x = 'Z'
n = 3
print("\nInsert",x,"in said list after every",n,"th element:")
print(inset_element_list(chars, x, n))
Sample Output:
Original list: [1, 3, 5, 7, 9, 11, 0, 2, 4, 6, 8, 10, 8, 9, 0, 4, 3, 0] Insert 20 in said list after every 4 th element: [1, 3, 5, 7, 20, 9, 11, 0, 2, 20, 4, 6, 8, 10, 20, 8, 9, 0, 4, 20, 3, 0] Original list: ['s', 'd', 'f', 'j', 's', 'a', 'j', 'd', 'f', 'd'] Insert Z in said list after every 3 th element: ['s', 'd', 'f', 'Z', 'j', 's', 'a', 'Z', 'j', 'd', 'f', 'Z', 'd']
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Python: Tips of the Day
Decapitalizes the first letter of a string:
Example:
def tips_decapitalize(s, upper_rest=False): return s[:1].lower() + (s[1:].upper() if upper_rest else s[1:]) print(tips_decapitalize('PythonTips')) print(tips_decapitalize('PythonTips', True))
Output:
pythonTips pYTHONTIPS
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