How To Add A Character In Python

When working with strings in Python, there may be times when you want to add a character to a string, either at the beginning, end or somewhere in the middle. In this tutorial, you will learn how to add characters to strings in Python.

Step 1: Use the Concatenation Operator

Python allows you to concatenate strings using the concatenation operator +. To add a character to a string, simply concatenate the character to the string.

1
2
3
original_string = "ello World"
new_string = "H" + original_string
print(new_string)

Output:

Hello World

Step 2: Use slicing and string interpolation

You can use slicing and string interpolation to insert a character at a specific position in a string:

1
2
3
original_string = "Helo World"
new_string = original_string[:3] + "l" + original_string[3:]
print(new_string)

Output:

Hello World

Step 3: Use the .join() method

The .join() method is another way to insert a character into a string. You can create a sequence of characters by inserting a character at a specific position, and then use the .join() method to join the characters back into a single string:

1
2
3
4
5
6
7
original_string = "Hell World"
insert_char = "o"
position = 4
new_string = "".join(
    (original_string[:position], insert_char, original_string[position:])
)
print(new_string)

Output:

Hello World

Full Code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
original_string = "ello World"
new_string = "H" + original_string
print(new_string)
 
original_string = "Helo World"
new_string = original_string[:3] + "l" + original_string[3:]
print(new_string)
 
original_string = "Hell World"
insert_char = "o"
position = 4
new_string = "".join(
    (original_string[:position], insert_char, original_string[position:])
)
print(new_string)

Conclusion

In this tutorial, you learned three different methods to add a character to a string in Python: using the concatenation operator, slicing and string interpolation, and the .join() method. Choose the method that best fits your needs when working with strings in your Python projects.