server side

//this is server's side code where I am recieving the files and trying to save them into a folder names 'serv'
from socket import *
import os

CHUNKSIZE = 1_000_000

server = socket()
server.bind(('localhost',9999))
server.listen(3)
os.makedirs('serv',exist_ok=True)

with server,server.makefile('rb') as serverfile:
    while True:
        print('Waiting for a client...')
        client, address = server.accept()
        print(f'Client joined from {address}')
        with client:
            raw = serverfile.readline()
        if not raw:
            break
        filename = raw.strip().decode()
        length = int(serverfile.readline())
        print(f'Downloading {filename}...\n  Expecting {length:,} bytes...', end='', flush=True)
        path = os.path.join('serv', filename)
        os.makedirs(os.path.dirname(path), exist_ok=True)

        with open(path, 'wb') as f:
            while length:
                chunk = min(length, CHUNKSIZE)
                data = serverfile.read(chunk)
                if not data: break
                f.write(data)
                length -= len(data)
            else:  # only runs if while doesn't break and length==0
                print('Complete')
                continue

        print('Incomplete')
        break

server.close()