Python swapcase

The Python swapcase function swaps the case of the characters and returns a new string. Or say, swapcase converts the Lowercase letters to Uppercase and Uppercase characters to lowercase. The syntax of the Python swapcase function is

String_Value.swapcase()

The swapcase Function is a Python String Method that keeps the Non-letters unchanged.

Python swapcase method Example

The following set of examples helps to know about the swapcase Function

# Python SwapCase Method Example

Str1 = 'Learn PYTHON AT TutOrial GateWay'
Str2 = Str1.swapcase()
print('First Output of a SwapCase() method is = ', Str2)

# Observe the Original String
print('Converted String is = ', Str1.swapcase())
print('Original String is = ', Str1)

# Performing Swapcase() function directly
Str3 = 'PYTHON ProGrammING'.swapcase()
print('Second Output of a SwapCase() method is = ', Str3)

Str4 = 'python1234TUTORIAL'.swapcase()
print('Third Output of a SwapCase() method is = ', Str4)

Str5 = '12345'.swapcase()
print('Fourth Output of a SwapCase() method is = ', Str5)

OUTPUT

ANALYSIS

The following swapcase statement converts the lowercase letters to uppercase and uppercase letters into lowercase.

Str2 = Str1.swapcase()
print('First Output of a SwapCase() method is = ', Str2)

The swapcase function returns the output in a new string, instead of altering the original string.

print('Converted String is = ', Str1.swapcase())
print('Original String is = ', Str1)

From the above swap case String function screenshot, see that the original string Str1 is unchanged. To change the original string, write the following Python statement.

Str1 = Str1.swapcase()

The swapcase converts the lowercase to upper and vice versa. However, it leaves other values unchanged. Here, we used the numeric values along with letters, and see the output for further reference.

Str4 = 'python1234TUTORIAL'.swapcase()
print('Third Output of a SwapCase() method is = ', Str4)

Str5 = '12345'.swapcase()
print('Fourth Output of a SwapCase() method is = ', Str5)