# This script is used to demonstrate the use of context managers and the translation feature in Python 3.8

# First, we import the necessary module for translation
import googletrans

# Next, we define a function to translate a given text from English to Spanish
def translate(text):
    # Create an instance of the Translator class from the googletrans module
    translator = googletrans.Translator()
    # Use the translate method to translate the given text to Spanish
    translated_text = translator.translate(text, dest='es')
    # Return the translated text
    return translated_text.text

# We can now use the translate function to translate any text we want
print(translate("This is a test sentence."))

# Now, we demonstrate the use of context managers by opening a file and printing its contents
# We use the "with" statement to ensure the file is closed after use
with open('example.txt') as f:
    # We iterate through each line in the file and print it
    for line in f:
        print(line)

# The "with" statement ensures that the file is automatically closed after use, even if an error occurs
# This makes our code more efficient and less prone to errors

# We can also use context managers in any order, without having to worry about the "with" statement
# For example, we can first define a function to print the contents of a file
def print_file_contents(file_name):
    # Open the file using the "with" statement
    with open(file_name) as f:
        # Iterate through each line in the file and print it
        for line in f:
            print(line)

# Now, we can call the function and pass in the file name as an argument
print_file_contents('example.txt')

# This demonstrates the flexibility of context managers in Python 3.8, making our code more readable and efficient.

# This script opens a file named 'example.txt' in read mode and prints the first line of the file.

# Open the file 'example.txt' in read mode and use the __enter__() method to enter the context manager.
with open('example.txt', 'r') as file:
    # Use the __iter__() method to return an iterator object for the file.
    file_iterator = file.__iter__()
    # Use the __next__() method to retrieve the next item from the iterator, which in this case is the first line of the file.
    first_line = file_iterator.__next__()
    # Print the first line of the file.
    print(first_line)

# This script uses f-strings to print out a personalized message based on user input.

# Prompt user to enter their name and store it in the variable "name"
name = input("Enter your name: ")

# Prompt user to enter their age and convert it to an integer before storing it in the variable "age"
age = int(input("Enter your age: "))

# Use f-string to print out a personalized message with the user's name and age
print(f"Your name is {name} and you are {age} years old.")

# Import the necessary modules
import imghdr # This module is deprecated and will be removed in Python 3.13
import magic # This is the modern alternative to imghdr

# Check if the file is an image using the deprecated imghdr module
if imghdr.what('example.jpg') == 'jpeg': # The .what() method checks the file's header and returns the file type
    print("This is an image file.")
else:
    print("Not an image file.")

# Check if the file is an image using the python-magic library
with open('example.jpg', 'rb') as f: # Open the file in binary mode
    m = magic.Magic(mime=True) # Create a Magic object with mime=True to get the file's mime type
    header = m.header(f.read()) # Use the .header() method to get the file's header
if header['Content-Type'] == "image/jpeg": # Check if the mime type is equal to "image/jpeg"
    print("This is an image file.")
else:
    print("Not an image file.")