upper() : Changes all chars to upper case letter in a string by Python

upper(): All chars changed to Upper case
All chars are changed to upper case letters , no parameter is taken by this method.

my_str='Welcome to plus2net Python section'
output=my_str.upper()
print(output)

Output

WELCOME TO PLUS2NET PYTHON SECTION

Example 1: Handling Empty String with upper()

my_str = ''
output = my_str.upper()
print(output)  # Output: ''

Output:

''

Example 2: Using upper() on String with Mixed Case and Special Characters

my_str = 'Welcome to Plus2Net! @2023'
output = my_str.upper()
print(output)  # Output: 'WELCOME TO PLUS2NET! @2023'

Output:

WELCOME TO PLUS2NET! @2023

Use Case: Converting User Input to Upper Case

user_input = input("Enter your name: ")
print(user_input.upper())

Output:

If input is 'john', output: 'JOHN'

All String methods lower() islower() isupper()

ljust() capitalize() Python- Tutorials

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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