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Python: Move given number of elements to the end of the list

Python List: Exercise - 262 with Solution

Write a Python program to move the specified number of elements to the end of the given list.

Use slice notation to get the two slices of the list and combine them before returning

Sample Solution:

Python Code:

def move_end(nums, offset):
  return nums[offset:] + nums[:offset] 
print(move_end([1, 2, 3, 4, 5, 6, 7, 8], 3))
print(move_end([1, 2, 3, 4, 5, 6, 7, 8], -3))
print(move_end([1, 2, 3, 4, 5, 6, 7, 8], 8))
print(move_end([1, 2, 3, 4, 5, 6, 7, 8], -8))
print(move_end([1, 2, 3, 4, 5, 6, 7, 8], 7))
print(move_end([1, 2, 3, 4, 5, 6, 7, 8], -7))

Sample Output: 

[4, 5, 6, 7, 8, 1, 2, 3]
[6, 7, 8, 1, 2, 3, 4, 5]
[1, 2, 3, 4, 5, 6, 7, 8]
[1, 2, 3, 4, 5, 6, 7, 8]
[8, 1, 2, 3, 4, 5, 6, 7]
[2, 3, 4, 5, 6, 7, 8, 1]

Flowchart:

Flowchart: Move given number of elements to the end of the list.

Visualize Python code execution:

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Python Code Editor:

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Previous: Write a Python program to get the most frequent element in a given list of numbers.
Next: Write a Python program to move the specified number of elements to the start of the given list.

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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