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# Example of using comments

# Variable initialization: User's age
user_age = 30  # Store the user's age in user_age variable


# Function definition: Calculate the user's birth year
def calculate_birth_year(age):
    # Return the value obtained by subtracting the age from the current year
    current_year = 2023
    return current_year - age



birth_year = calculate_birth_year(user_age)


print("Birth Year:", birth_year)  # Print the user's birth year


"""
This section is an example of multi-line comments.
This code block is not executed, but can be used
for documentation or explanation.
"""

# Explaining Code with Comments

Comments are **text-based notes** within code that are ignored during Python code execution.

Properly used comments make code easier to understand and are often used for documentation to aid collaboration with other developers.

<br />

## How to Use Comments

In Python, comments are written using the hash (`#`) symbol. Any text that follows `#` is treated as a comment.

```python title="Writing a Comment"
# This line does not affect the execution of the Python code
print("Python programming!")  # This is also a comment
```

<br />

## Multi-line Comments

Python does not directly support multi-line comments, but you can write comments over multiple lines using `#`.

Additionally, you can use string literals (`'''` or `"""`) to simulate multi-line comments.

```python title="Writing Multi-line Comments"
# First line comment
# Second line comment

"""
Triple double-quotes can be used like multi-line comments.
However, this is actually a string and affects Python code behavior.
"""
```

Explaining Code with Comments