Learn how to convert uppercase characters to lowercase in Python without using built-in functions. This Python program demonstrates a simple method to achieve this task without relying on any predefined functions.
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When working with strings in Python, you might encounter scenarios where you need to convert uppercase characters to lowercase without using any built-in functions. While Python offers the lower() function to achieve this effortlessly, understanding how to accomplish the same task without using built-in functions can be enlightening.

Here's a Python program that demonstrates how to convert uppercase characters to lowercase without using any functions:

[[See Video to Reveal this Text or Code Snippet]]

In this program:

We start with an input string containing uppercase characters.

We initialize an empty string output_string to store the converted lowercase characters.

We iterate through each character in the input string using a for loop.

Within the loop, we check if the current character is an uppercase letter by comparing its ASCII value with the ASCII values of uppercase letters ('A' to 'Z').

If the character is uppercase, we convert it to lowercase by adding 32 to its ASCII value (the ASCII difference between uppercase and lowercase letters).

We concatenate the converted lowercase character (or the original character if it's not uppercase) to the output_string.

Finally, we print both the input and converted output strings.

By running this program, you can observe the conversion of uppercase characters to lowercase without using any built-in functions.

Understanding how to perform tasks like this without relying on built-in functions enhances your understanding of Python fundamentals and strengthens your problem-solving skills.

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