The download script is a Python program that helps you estimate the time it will take to download a file of a certain size. It does so by monitoring the current size of the downloaded file and updating a progress bar accordingly. The progress bar is displayed in the command-line interface using the tqdm library. To use the script, you need to pr…

download_script.py

import argparse
import time
import subprocess
from tqdm import tqdm

parser = argparse.ArgumentParser(description='Download script.')
parser.add_argument('path', type=str, help='Path to the file to be downloaded.')
parser.add_argument('size', type=float, help='Size of the file to be downloaded in GB.')

args = parser.parse_args()

total_size = int(args.size * 1024 * 1024 * 1024) # Total download size in bytes
block_size = 8192 # Download block size in bytes

start_time = time.time()

with tqdm(total=total_size, unit='B', unit_scale=True, unit_divisor=1024, desc='Downloading...') as pbar:
    while True:
        try:
            output = subprocess.check_output(f"du -sk {args.path}", shell=True).decode("utf-8")
            current_size = int(output.split()[0]) * 1024 # Convert to bytes
        except subprocess.CalledProcessError:
            current_size = 0
        
        pbar.update(current_size - pbar.n)
        
        if current_size >= total_size:
            break
            
        time.sleep(1)

elapsed_time = time.time() - start_time
print(f"Total download time: {elapsed_time:.2f} seconds")