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Python: Move a specified element in a given list

Python List: Exercise - 196 with Solution

Write a Python program to move a specified element in a given list.

Sample Solution:

Python Code:

def group_similar_items(seq,el):
    seq.append(seq.pop(seq.index(el)))
    return seq 

colors = ['red','green','white','black','orange']
print("Original list:")
print(colors)
el = "white"
print("Move",el,"at the end of the said list:")
print(group_similar_items(colors, el))

colors = ['red','green','white','black','orange']
print("\nOriginal list:")
print(colors)
el = "red"
print("Move",el,"at the end of the said list:")
print(group_similar_items(colors, el))

colors = ['red','green','white','black','orange']
print("\nOriginal list:")
print(colors)
el = "black"
print("Move",el,"at the end of the said list:")
print(group_similar_items(colors, el))

Sample Output:

Original list:
['red', 'green', 'white', 'black', 'orange']
Move white at the end of the said list:
['red', 'green', 'black', 'orange', 'white']

Original list:
['red', 'green', 'white', 'black', 'orange']
Move red at the end of the said list:
['green', 'white', 'black', 'orange', 'red']

Original list:
['red', 'green', 'white', 'black', 'orange']
Move black at the end of the said list:
['red', 'green', 'white', 'orange', 'black']

Pictorial Presentation:

Python List: Move a specified element in a given list.

Flowchart:

Flowchart: Move a specified element in a given list.

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:


Python Code Editor:

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Previous: Write a Python program to sum two or more lists, the lengths of the lists may be different.
Next: Write a Python program to compute the average of nth elements in a given list of lists with different lengths.

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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