Python: Interleave multiple lists of the same length. Use itertools module
Python Itertools: Exercise-29 with Solution
Write a Python program to interleave multiple lists of the same length. Use itertools module.
Sample Solution:
Python Code:
import itertools
def interleave_multiple_lists(list1,list2,list3):
result = list(itertools.chain(*zip(list1, list2, list3)))
return result
list1 = [100,200,300,400,500,600,700]
list2 = [10,20,30,40,50,60,70]
list3 = [1,2,3,4,5,6,7]
print("Original list:")
print("list1:",list1)
print("list2:",list2)
print("list3:",list3)
print("\nInterleave multiple lists:")
print(interleave_multiple_lists(list1,list2,list3))
Sample Output:
Original list: list1: [100, 200, 300, 400, 500, 600, 700] list2: [10, 20, 30, 40, 50, 60, 70] list3: [1, 2, 3, 4, 5, 6, 7] Interleave multiple lists: [100, 10, 1, 200, 20, 2, 300, 30, 3, 400, 40, 4, 500, 50, 5, 600, 60, 6, 700, 70, 7]
Python Code Editor:
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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
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