Python: Add a prefix text to all of the lines in a string

Last update on April 19 2025 13:05:29 (UTC/GMT +8 hours)

Add prefix to each line of text.

Write a Python program to add prefix text to all of the lines in a string.

Python String Exercises: Add a prefix text to all of the lines in a string

Sample Solution:

Python Code:

# Import the 'textwrap' module, which provides text formatting capabilities.
import textwrap

# Define a multi-line string 'sample_text' with text content that includes indentation.
sample_text = '''
    Python is a widely used high-level, general-purpose, interpreted,
    dynamic programming language. Its design philosophy emphasizes
    code readability, and its syntax allows programmers to express
    concepts in fewer lines of code than possible in languages such
    as C++ or Java.
    '''

# Use 'textwrap.dedent' to remove the common leading whitespace (indentation) from 'sample_text'.
text_without_Indentation = textwrap.dedent(sample_text)

# Print an empty line for spacing.
print()

# Print the 'text_without_Indentation', which is the 'sample_text' with indentation removed.
print(text_without_Indentation)

# Print an empty line for spacing.
print()

Sample Output:

>  Python is a widely used high-level, general-                                                               
> purpose, interpreted, dynamic programming                                                                   
> language. Its design philosophy emphasizes code                                                             
> readability, and its syntax allows programmers to                                                           
> express concepts in fewer lines of code than                                                                
> possible in languages such as C++ or Java.

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to prepend a given prefix to every line in a multi-line string.
Write a Python program to split a text into lines, add a prefix to each, and rejoin them with newline characters.
Write a Python program to use map() to add a custom prefix to each line of an input string.
Write a Python program to implement a function that takes a prefix and a text, and returns the text with the prefix added to every line.

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Python Code Editor:

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