Add a character to a specific position in a string in Python

In this tutorial, you will learn how to add a character to a specific position in a string in Python. When it comes to programming, strings are considered to be a sequence of characters, and in Python, strings are immutable, meaning they cannot be changed once created but we can add characters to the string to edit the string which further makes a new string.

Different methods or functions can be used to accomplish this process. Let us discuss all the possible methods in this tutorial.

By using the ‘+’ operator

Using’+’ we can concatenate strings and characters according to the desired position. Look at the code given below to clear your concept related to this method.

#Write the string
s = "codespeed"
s = s + 'y' # Adding a Character at end
print(s)
s1 = "coespeedy"
s1 = s1[:2] + 'd' + s1[2:] # adding a Character at specific position
print(s1)
s2 = "odespeedy"
s2 = 'c' + s2 # addig a Character at the starting
print(s2)

Output:

codespeedy
codespeedy
codespeedy

By using join() function

It is also possible in Python to concatenate characters at specific positions within a string by using join(). It is possible to add characters throughout the string, whether they be at the beginning, the end, or in the middle. In order to help you with your doubts, the following code is given.

#Write the string
s = "codespeed"
s = ''.join((s,'y')) #join the Character at end
print(s)
s1 = "coespeedy"
s1 = ''.join((s1[:2],'d',s1[2:])) #join the Character at specific pos
print(s1)
s2 = "odespeedy"
s2 = ''.join(("c",s2)) # join the Character at start
print(s2)

Output:

codespeedy
codespeedy
codespeedy

By using format() function

format() function is also a method to add characters to a specific position in a string in Python. It is also used for string formatting in Python. For reference look at the code given below:

s = "codespeed"
s = "codespeed{}".format('y') #format() function to add Character at end
print(s)
s1 = "coespeedy"
s1 = "co{}espeedy".format('d') # format() function to add Character at specific pos
print(s1)
s2 = "odespeedy"
s2 = "{}odespeedy".format('c') # format() function to add Character at start
print(s2)

Output:

codespeedy
codespeedy
codespeedy