Python Exercises: Remove punctuations from a string

Last update on December 21 2024 07:46:18 (UTC/GMT +8 hours)

Remove punctuation from string.

From Wikipedia,
Punctuation is the use of spacing, conventional signs, and certain typographical devices as aids to the understanding and correct reading of written text. The marks, such as full stop, comma, and brackets, used in writing to separate sentences and their elements and to clarify meaning.

Write a Python program to remove punctuation from a given string.

Sample Solution-1:

Python Code:

# Import the 'string' module for accessing a string of punctuation characters
import string

# Define a function to remove punctuation characters from a given string
def remove_punctuations(text):
    # Iterate through each punctuation character and replace it with an empty string
    for c in string.punctuation:
        text = text.replace(c, "")
    
    # Return the modified string without punctuation
    return text

# Initialize a string with punctuation
text = "String! With. Punctuation?"

# Print the original text
print("Original text:")
print(text)

# Call the function to remove punctuation characters and print the result
result = remove_punctuations(text)
print("After removing Punctuations from the said string:")
print(result)

Sample Output:

Original text:
String! With. Punctuation?
After removing Punctuations from the said string:
String With Punctuation

Flowchart:

Sample Solution-2:

Python Code:

# Import the 'string' module for accessing a string of punctuation characters
import string

# Define a function to remove punctuation characters from a given string using translation
def remove_punctuations(text):
    # Use the translate method with str.maketrans to remove punctuation characters
    return text.translate(str.maketrans('', '', string.punctuation))

# Initialize a string with punctuation
text = "String! With. Punctuation?"

# Print the original text
print("Original text:")
print(text)

# Call the function to remove punctuation characters and print the result
result = remove_punctuations(text)
print("After removing Punctuations from the said string:")
print(result) 

Sample Output:

Original text:
String! With. Punctuation?
After removing Punctuations from the said string:
String With Punctuation

Flowchart:

Sample Solution-3:

Python Code:

# Define a function to remove specific punctuation characters from a given string
def remove_punctuations(text):
    # Define a string containing specific punctuation characters to be removed
    punc_list = '''!()-[]{};:'"\,<>./?@#$%^&*_~'''
    
    # Initialize an empty string to store the result after removing punctuation characters
    result = ""
    
    # Iterate through each character in the input string
    for char in text:
        # Check if the character is not in the specified punctuation list
        if char not in punc_list:
            # If true, add the character to the result string
            result = result + char
    
    # Return the modified string without specified punctuation
    return result

# Initialize a string with various punctuation characters
text = "@^&$String! With.-- Punctuation?"

# Print the original text
print("Original text:")
print(text)

# Call the function to remove specified punctuation characters and print the result
result = remove_punctuations(text)
print("\nAfter removing Punctuations from the said string:")
print(result) 

Sample Output:

Original text:
@^&$String! With.-- Punctuation?

After removing Punctuations from the said string:
String With Punctuation

Flowchart:

Python Code Editor:

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