Python Program to Swap Two Character of Given String

Through this python tutorial, we would like to share with you how to swap first and last characters of given string in python.

Python Program to Swap Two Character of Given String

There are two python programs available in this tutorial for how to swap two characters in a string python; as follows:

• 1: Python swap first and last character of string
• 2: Python swap characters of the string

1: Python swap first and last character of string

• Define a function, which is used to swap characters of given string.
• Allow user to input a string.
• Call swap() with [ass the string as an argument to a function.
• Print result.

# swap characters in string
def swap(str):
    if len(str) <= 1:
        return str

    mid = str[1:len(str) - 1]
    return str[len(str) - 1] + mid + str[0]

# take string from user
str1 = input("Please Enter String : ")

print (swap(str1))

After executing the program, the output will be:

Please Enter String :  hello
oellh

2: Python swap characters of the string

• Define function, which is used to swap a string characters.
• Allow user to input a string and store it in a variable.
• Call function with Pass the string as an argument to a function.
• Print the result

# swap characters in string
def swap(string):
      return string[-1:] + string[1:-1] + string[:1]

# take string from user
str1 = input("Please Enter String : ")

print (swap(str1))

After executing the program, the output will be:

Please Enter String :  dev
ved

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