Python: Remove an element from a given list

Last update on May 28 2022 13:48:02 (UTC/GMT +8 hours)

Python List: Exercise - 211 with Solution

Write a Python program to remove an element from a given list.

Sample Solution-1:

Python Code:

student = ['Ricky Rivera', 98, 'Math', 90, 'Science']
print("Original list:")
print(student)
print("\nAfter deleting an element:, using index of the element:")
del(student[0])
print(student)

Sample Output:

Original list:
['Ricky Rivera', 98, 'Math', 90, 'Science']

After deleting an element:, using index of the element:
[98, 'Math', 90, 'Science']

Flowchart:

Visualize Python code execution:

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

Sample Solution-2:

Python Code:

student = ['Ricky Rivera', 98, 'Math', 90, 'Science']
print("Original list:")
print(student)
print("\nAfter deleting an element:, using remove function:")
student.remove('Math')
print(student)

Sample Output:

Original list:
['Ricky Rivera', 98, 'Math', 90, 'Science']

After deleting an element:, using remove function:
['Ricky Rivera', 98, 90, 'Science']

Flowchart:

Visualize Python code execution:

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

Sample Solution-3:

Python Code:

student = ['Ricky Rivera', 98, 'Math', 90, 'Science']
print("Original list:")
print(student)
print("\nAfter deleting an element:, using pop function:")
z = student.pop()
print(student)
print("Removed value is:",z)

Sample Output:

Original list:
['Ricky Rivera', 98, 'Math', 90, 'Science']

After deleting an element:, using pop function:
['Ricky Rivera', 98, 'Math', 90]
Removed value is: Science

Flowchart:

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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Next: Write a Python program to remove all the values except integer values from a given array of mixed values.

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