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You could use ThreadPoolExecutor and initialize workers who have a shared memory but it's affected by GIL.

you could use this simple code

from concurrent.futures import ThreadPoolExecutor
import tarfile
import os

def extract_file(fullpath, destination):
   
    try:
        with tarfile.open(fullpath, 'r:gz') as tar:
            tar.extractall(destination)
       
    except Exception as e:
        print(f"Error extracting {fullpath}: {e}")

def unziptar_parallel(path):
   
    tar_files = []
    for root, dirs, files in os.walk(path):
        for file in files:
            if file.endswith(".tar.gz"):
                fullpath = os.path.join(root, file)
                tar_files.append((fullpath, root)) 
    
   
    
    with ThreadPoolExecutor(max_workers=4) as executor:
      
        tasks = []
        for fullpath, destination in tar_files:
            task = executor.submit(extract_file, fullpath, destination)
            tasks .append(future)
        
        # انتظار انتهاء جميع المهام
        for task in tasks :
            task.result()

path = 'your path'
unziptar_parallel(path)

Check these resources for more information:

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