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Python: Create a list taking alternate elements from a given list

Python List: Exercise - 120 with Solution

Write a Python program to create a list taking alternate elements from a given list.

Sample Solution:

Python Code:

def alternate_elements(list_data):
    result=[]
    for item in list_data[::2]:
        result.append(item)
    return result 
colors = ["red", "black", "white", "green", "orange"]
print("Original list:")
print(colors)
print("List with alternate elements from the said list:")
print(alternate_elements(colors))
nums = [2,0,3,4,0,2,8,3,4,2]
print("\nOriginal list:")
print(nums)
print("List with alternate elements from the said list:")
print(alternate_elements(nums))

Sample Output:

Original list:
['red', 'black', 'white', 'green', 'orange']
List with alternate elements from the said list:
['red', 'white', 'orange']

Original list:
[2, 0, 3, 4, 0, 2, 8, 3, 4, 2]
List with alternate elements from the said list:
[2, 3, 0, 8, 4]

Flowchart:

Flowchart: Create a list taking alternate elements from a given list.

Visualize Python code execution:

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Python Code Editor:

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Python: Tips of the Day

Returns True if the provided function returns True for every element in the list, False otherwise:

Example:

def tips_every(lst, fn=lambda x: x):
  return all(map(fn, lst))

print(tips_every([2, 4, 3], lambda x: x > 1))
print(tips_every([1, 2, 3]))

Output:

True
True