Python: Insert a string in the middle of a string

Last update on March 21 2025 12:52:02 (UTC/GMT +8 hours)

Insert string into middle of another.

Write a Python function to insert a string in the middle of a string.

Python String Exercises: Insert a string in the middle of a string

Sample Solution:

Python Code:

# Define a function named insert_string_middle that takes two arguments, 'str' and 'word'.
def insert_string_middle(str, word):
    # Create and return a new string by concatenating the first two characters of 'str',
    # followed by the 'word', and then the remaining characters of 'str' starting from the third character.
    return str[:2] + word + str[2:]

# Call the insert_string_middle function with different input strings and words and print the results.
print(insert_string_middle('[[]]', 'Python'))  # Output: '[Python]'
print(insert_string_middle('{{}}', 'PHP'))    # Output: '{{PHP}}'
print(insert_string_middle('<<>>', 'HTML'))    # Output: '<>'

Sample Output:

[[Python]]                                                                                                    
{{PHP}}                                                                                                       
<<HTML>>

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to insert one string into the middle of another string using slicing.
Write a Python function that calculates the midpoint of a string and inserts a given substring at that position.
Write a Python program to merge two strings by placing the second string into the center of the first string.
Write a Python program to implement this functionality recursively, dividing the string into two halves and inserting the new string.

Python Code Editor:

Previous: Write a Python function to create the HTML string with tags around the word(s).
Next: Write a Python function to get a string made of 4 copies of the last two characters of a specified string (length must be at least 2).