The `upper()` function in Python is a string method used to convert all lowercase characters in a string to uppercase. It doesn't modify the original string but returns a new string with all characters converted to uppercase.
Syntax
string.upper()Example Here's a simple example to illustrate the use of the `upper()` function:
# Original string text = "hello, world!" # Convert the string to uppercase uppercase_text = text.upper() # Display the result print(uppercase_text)Output
HELLO, WORLD!Explanation - Original String: `text = "hello, world!"` - This is the string you want to convert to uppercase. - Using `upper()`: `uppercase_text = text.upper()` - This method converts all the lowercase letters in `text` to uppercase, resulting in `"HELLO, WORLD!"`. - Result: The `print(uppercase_text)` statement outputs the converted string, which is all in uppercase.
Additional Example
# Another example greeting = "Welcome to Python Programming!" # Convert to uppercase uppercase_greeting = greeting.upper() # Display the result print(uppercase_greeting)Output
WELCOME TO PYTHON PROGRAMMING!In this example, the `upper()` function converts the entire string `greeting` into uppercase. This method is useful when you need to ensure that all characters in a string are in uppercase, regardless of their original case.