rich progress bar not showing correct results with sockets file sharing

I have two scripts sender.py and reciever.py. i got the idea of calculating chunks recieved and chunks sent from here.

but i got some different results. the progress bar completed 100% instantly as shown here. am i doing something wrong?

sender.py

import socket
from pip._vendor.rich.progress import (Progress,TextColumn,BarColumn,TransferSpeedColumn, DownloadColumn, TaskProgressColumn)

sock = socket.socket()
sock.connect(('127.0.0.1',9999))
filename = "C:\\Users\\usename\\Downloads\\ubuntu-23.04-desktop-amd64.iso"
filesize = 4932407296
with Progress(TextColumn("[progress.description]{task.description}"), BarColumn(), TaskProgressColumn(), DownloadColumn(binary_units=True), TextColumn('at'), TransferSpeedColumn()) as progress:
    send_task = progress.add_task("Sending...", total=filesize)
    with open(filename, 'rb') as f:
        data_sent = 0
        while True:
            data = f.read(102400)
            if not data:
                break
            data_sent += sock.send(data)
            progress.update(send_task, advance=data_sent)
sock.close()

reviever.py

import socket
from pip._vendor.rich.progress import (Progress,TextColumn,BarColumn,TransferSpeedColumn, DownloadColumn, TaskProgressColumn)

sock = socket.socket()
sock.bind(("127.0.0.1",9999))
sock.listen(10) # Accepts up to 10 incoming connections..
conn, address = sock.accept()
filename = 'ubuntu-23.04-desktop-amd64.iso'
filesize = 4932407296
print( address)
with Progress(TextColumn("[progress.description]{task.description}"), BarColumn(), TaskProgressColumn(), DownloadColumn(binary_units=True), TextColumn('at'), TransferSpeedColumn()) as progress:
    recv_task = progress.add_task("Recieving...", total=filesize)
    with open(filename,'wb') as f:
        data_recieved = 0
        while (data_recieved < filesize):
            data = conn.recv(102400)
            data_recieved += f.write(data)
            progress.update(recv_task, advance=data_recieved)
conn.close()
sock.close()

Setting advance will add to the completed value by the specified ammount while setting completed itself will override it.

Since data_sent and data_received are already sums, instead of

progress.update(task, advance=amount)

You probably want

progress.update(task, completed=amount)

Altenatively, you could also avoid keeping track of the total entirely, and just use the delta:

(sender.py)

import socket
from pip._vendor.rich.progress import (Progress,TextColumn,BarColumn,TransferSpeedColumn, DownloadColumn, TaskProgressColumn)

sock = socket.socket()
sock.connect(('127.0.0.1',9999))
filename = "C:\\Users\\usename\\Downloads\\ubuntu-23.04-desktop-amd64.iso"
filesize = 4932407296
with Progress(TextColumn("[progress.description]{task.description}"), BarColumn(), TaskProgressColumn(), DownloadColumn(binary_units=True), TextColumn('at'), TransferSpeedColumn()) as progress:
    send_task = progress.add_task("Sending...", total=filesize)
    with open(filename, 'rb') as f:
        while True:
            data = f.read(102400)
            if not data:
                break
            delta = sock.send(data)
            progress.update(send_task, advance=delta)
sock.close()