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Python: Interleave two given list into another list randomly using map function

Python map: Exercise-14 with Solution

Write a Python program to interleave two given list into another list randomly using map() function.

Sample Solution:

Python Code:

import random
def randomly_interleave(nums1, nums2):
    result =  list(map(next, random.sample([iter(nums1)]*len(nums1) + [iter(nums2)]*len(nums2), len(nums1)+len(nums2))))
    return result
nums1 = [1,2,7,8,3,7]
nums2 = [4,3,8,9,4,3,8,9]
print("Original lists:") 
print(nums1)
print(nums2)
print("\nInterleave two given list into another list randomly:")
print(randomly_interleave(nums1, nums2))

Sample Output:

Original lists:
[1, 2, 7, 8, 3, 7]
[4, 3, 8, 9, 4, 3, 8, 9]

Interleave two given list into another list randomly:
[4, 3, 8, 9, 1, 2, 4, 3, 7, 8, 3, 7, 8, 9]

Python Code Editor:

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Previous: Write a Python program to count the same pair in two given lists. use map() function.
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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m