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Python: Triple all numbers of a given list of integers using map function

Python map: Exercise-1 with Solution

Write a Python program to triple all numbers of a given list of integers. Use Python map.

Sample Solution:

Python Code :

nums = (1, 2, 3, 4, 5, 6, 7) 
print("Original list: ", nums)
result = map(lambda x: x + x + x, nums) 
print("\nTriple of said list numbers:")
print(list(result))

Sample Output:

Original list:  (1, 2, 3, 4, 5, 6, 7)

Triple of said list numbers:
[3, 6, 9, 12, 15, 18, 21]

Python Code Editor:

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Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

def tips_map_values(obj, fn):
  ret = {}
  for key in obj.keys():
    ret[key] = fn(obj[key])
  return ret
users = {
  'Owen': { 'user': 'Owen', 'age': 29 },
  'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}

Output:

{'Owen': 29, 'Eddie': 15}