# The following script uses the new assignment expressions feature to simplify the code and avoid using temporary variables.

# First, we declare the variables y and z and assign them values.
y = 5
z = 10

# Then, we use the assignment expression (:=) to assign the value of y + z to the variable x, while also performing the addition operation.
x := y + z

# Finally, we use the value of x to calculate the result and assign it to the variable result.
result = x * 2

# The code can be further simplified by combining the first two lines into one, as shown below.
result = (x := y + z) * 2

# This results in the same output as the original script, but with less lines of code and no need for temporary variables.

# This script calculates the result of (y + z) * 2

# Assigns the value of (y + z) * 2 to the variable "result"
result = (y + z) * 2  # corrected syntax: use "=" instead of ":=" for assignment

# Prints the value of "result"
print(result)  # corrected syntax: use "print()" instead of "println()" for printing in python

# Example values for y and z
y = 5
z = 10

# Prints the result of (y + z) * 2
print((y + z) * 2)  # corrected syntax: use "print()" instead of "println()" for printing in python

# This script demonstrates the use of f-strings and function signatures in Python 3.8

# Define a function called my_function that takes in two parameters, x and y
def my_function(x: int, y: int) -> None:
    # Use an f-string to print the result of x + y
    print(f"The result is {x + y}")

# Call the my_function with the arguments 10 and 20
my_function(10, 20) # prints "The result is 30"

# This script is used to serve static files using the built-in HTTP server in Python 3.8.

# Import the necessary modules
import http.server # Import the http.server module to create a HTTP server
from os import path # Import the path module from the os library to handle file paths

# Set the port and directory path for the server
PORT = 8000 # Set the port number to 8000
DIR_PATH = "path/to/your/static/files" # Set the directory path to the location of the static files

# Create a class for handling HTTP requests
class MyHandler(http.server.SimpleHTTPRequestHandler):
    # Initialize the class with the directory path
    def __init__(self, *args, **kwargs):
        super().__init__(*args, directory=DIR_PATH, **kwargs) # Call the parent class constructor with the directory path
        
    # Define the do_GET method to handle GET requests
    def do_GET(self):
        if self.path == "/": # Check if the requested path is the root
            self.send_response(200) # Send a 200 OK response
            self.send_header("Content-type", "text/html") # Set the content type to HTML
            self.end_headers() # End the headers
            with open(path.join(DIR_PATH, "index.html"), encoding="utf8") as f: # Open the index.html file in the specified directory
                self.wfile.write(f.read().encode()) # Write the contents of the file to the response body
        else:
            super().do_GET() # If the requested path is not the root, call the parent class method to handle the request
        
    # Define the do_HEAD method to handle HEAD requests
    def do_HEAD(self):
        if self.path == "/": # Check if the requested path is the root
            self.send_response(200) # Send a 200 OK response
            self.send_header("Content-type", "text/html") # Set the content type to HTML
            self.end_headers() # End the headers
        else:
            super().do_HEAD() # If the requested path is not the root, call the parent class method to handle the request
        
    # Define the do_POST method to handle POST requests
    def do_POST(self):
        if self.path == "/": # Check if the requested path is the root
            content = self.rfile.read(int(self.headers["Content-Length"])) # Read the content of the request body
            # handle form data here...
            
            self.send_response(204) # Send a 204 No Content response
            self.end_headers() # End the headers
        else:
            super().do_POST() # If the requested path is not the root, call the parent class method to handle the request
        
    # Define the do_PUT method to handle PUT requests
    def do_PUT(self):
        if self.path == "/": # Check if the requested path is the root
            content = self.rfile.read(int(self.headers["Content-Length"])) # Read the content of the request body
            # handle file upload here...
            
            self.send_response(204) # Send a 204 No Content response
            self.end_headers() # End the headers
        else:
            super().do_PUT() # If the requested path is not the root, call the parent class method to handle the request
        
    # Define the do_DELETE method to handle DELETE requests
    def do_DELETE(self):
        if self.path == "/": # Check if the requested path is the root
            # delete a file or directory here...
            
            self.send_response(204) # Send a 204 No Content response
            self.end_headers() # End the headers
        else:
            super().do_DELETE() # If the requested path is not the root, call the parent class method to handle the request
        
# Check if the script is being run directly
if __name__ == "__main__":
    http.server.HTTPServer(("", PORT), MyHandler).serve_forever() # Create a HTTP server with the specified port and handler, and serve requests indefinitely.