Python Program to Remove a String from a List of Strings

Python Program to Remove a String from a List of Strings

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Given a list of strings and another string the task is to remove the given string from the given list of strings.

Examples:

Example1:

Input:

Given list of strings =['hello', 'this', 'is', 'btechgeeks', 'python', 'coding', 'platform']
Given string ='python'

Output:

The given list of strings before removing the string [ python ] is ['hello', 'this', 'is', 'btechgeeks', 'python', 'coding',
 'platform']
The given list of strings after removing the string [ python ] is ['hello', 'this', 'is', 'btechgeeks', 'coding', 'platform']

Example2:

Input:

Given list of strings =['hello', 'food', 'morning', 'this', 'is', 'btechgeeks', 'online', 'coding', 'platform', 
                                    'for', 'geeks', 'online']
Given string ='geeks'

Output:

The given list of strings before removing the string [ geeks ] is ['hello', 'food', 'morning', 'this', 'is', 'btechgeeks', 
                                                                                                      'online', 'coding', 'platform', 'for', 'geeks', 'online']
The given list of strings after removing the string [ geeks ] is ['hello', 'food', 'morning', 'this', 'is', 'btechgeeks',
                                                                                                  'online', 'coding', 'platform', 'for', 'online']

Program to Remove a String from a List of Strings in Python

Below are the ways to remove the given string from the given list of strings.

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Method #1: Using List Comprehension (Static Input)

Approach:

  • Give the list of strings as static input and store it in a variable.
  • Give the string as static input and store it in another variable.
  • Remove the given strings from the list of strings using List Comprehension.
  • Print the modified list of strings.
  • The Exit of the Program.

Below is the implementation:

# Give the list of strings as static input and store it in a variable.
gvnstrnlists = ['hello', 'this', 'is',
                'btechgeeks', 'python', 'coding', 'platform']
# Give the string as static input and store it in another variable.
gvnstrng = "python"
print(
    'The given list of strings before removing the string [', gvnstrng, '] is', gvnstrnlists)

# Remove the given strings from the list of strings using List Comprehension.
modilststrngs = [elemen for elemen in gvnstrnlists if elemen != gvnstrng]
# Print the modified list of strings.
print(
    'The given list of strings after removing the string [', gvnstrng, '] is', modilststrngs)

Output:

The given list of strings before removing the string [ python ] is ['hello', 'this', 'is', 'btechgeeks', 'python', 'coding',
 'platform']
The given list of strings after removing the string [ python ] is ['hello', 'this', 'is', 'btechgeeks', 'coding', 'platform']

Method #2: Using List Comprehension (User Input)

Approach:

  • Give the list of strings as user input using list(), split(), and input() functions and store it in a variable.
  • Give the string as user input using input() and store it in another variable.
  • Remove the given strings from the list of strings using List Comprehension.
  • Print the modified list of strings.
  • The Exit of the Program.

Below is the implementation:

# Give the list of strings as user input using list(), split(),
# and input() functions and store it in a variable.
gvnstrnlists = list(input('Enter some random list of strings = ').split())
# Give the string as user input using input() and store it in another variable.
gvnstrng = input('enter some random string which you want to remove = ')
print(
    'The given list of strings before removing the string [', gvnstrng, '] is', gvnstrnlists)

# Remove the given strings from the list of strings using List Comprehension.
modilststrngs = [elemen for elemen in gvnstrnlists if elemen != gvnstrng]
# Print the modified list of strings.
print(
    'The given list of strings after removing the string [', gvnstrng, '] is', modilststrngs)

Output:

Enter some random list of strings = good morning this is btechgeeks python
enter some random string which you want to remove = this
The given list of strings before removing the string [ this ] is ['good', 'morning', 'this', 'is', 'btechgeeks', 'python']
The given list of strings after removing the string [ this ] is ['good', 'morning', 'is', 'btechgeeks', 'python']

Method #3: Using remove() function (Static Input)

Approach:

  • Give the list of strings as static input and store it in a variable.
  • Give the string as static input and store it in another variable.
  • Loop through the list of strings using For loop.
  • Check if the element is equal to the given string using the If statement.
  • If it is true then remove the element from the given list of strings using the remove() function.
  • Print the modified list of strings.
  • The Exit of the Program.

Below is the implementation:

# Give the list of strings as static input and store it in a variable.
gvnstrnlists = ['hello', 'this', 'is',
                'btechgeeks', 'python', 'coding', 'platform']
# Give the string as static input and store it in another variable.
gvnstrng = "python"
print(
    'The given list of strings before removing the string [', gvnstrng, '] is', gvnstrnlists)
# Loop through the list of strings using For loop.
for strngele in gvnstrnlists:
    # Check if the element is equal to the given string using the If statement.
    if(strngele == gvnstrng):
        # If it is true then remove the element from the given list
        # of strings using the remove() function.
        gvnstrnlists.remove(strngele)
# Remove the given strings from the list of strings using List Comprehension.
modilststrngs = [elemen for elemen in gvnstrnlists if elemen != gvnstrng]
# Print the modified list of strings.
print(
    'The given list of strings after removing the string [', gvnstrng, '] is', modilststrngs)

Output:

The given list of strings before removing the string [ python ] is ['hello', 'this', 'is', 'btechgeeks', 'python', 'coding', 'platform']
The given list of strings after removing the string [ python ] is ['hello', 'this', 'is', 'btechgeeks', 'coding', 'platform']

Method #4: Using remove() function (User Input)

Approach:

  • Give the list of strings as user input using list(), split(), and input() functions and store it in a variable.
  • Give the string as user input using input() and store it in another variable.
  • Loop through the list of strings using For loop.
  • Check if the element is equal to the given string using the If statement.
  • If it is true then remove the element from the given list of strings using the remove() function.
  • Print the modified list of strings.
  • The Exit of the Program.

Below is the implementation:

# Give the list of strings as user input using list(), split(),
# and input() functions and store it in a variable.
gvnstrnlists = list(input('Enter some random list of strings = ').split())
# Give the string as user input using input() and store it in another variable.
gvnstrng = input('enter some random string which you want to remove = ')
print(
    'The given list of strings before removing the string [', gvnstrng, '] is', gvnstrnlists)
# Loop through the list of strings using For loop.
for strngele in gvnstrnlists:
    # Check if the element is equal to the given string using the If statement.
    if(strngele == gvnstrng):
        # If it is true then remove the element from the given list
        # of strings using the remove() function.
        gvnstrnlists.remove(strngele)
# Remove the given strings from the list of strings using List Comprehension.
modilststrngs = [elemen for elemen in gvnstrnlists if elemen != gvnstrng]
# Print the modified list of strings.
print(
    'The given list of strings after removing the string [', gvnstrng, '] is', modilststrngs)

Output:

Enter some random list of strings = hello food morning this is btechgeeks online coding platform
 for geeks online
enter some random string which you want to remove = geeks
The given list of strings before removing the string [ geeks ] is ['hello', 'food', 'morning', 'this', 'is', 
'btechgeeks', 'online', 'coding', 'platform', 'for', 'geeks', 'online']
The given list of strings after removing the string [ geeks ] is ['hello', 'food', 'morning', 'this', 'is',
 'btechgeeks', 'online', 'coding', 'platform', 'for', 'online']

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