how show number of packet in my gui

i have two pages one page is client and another gui,i need to display the number of packets after download file using read button, i used return in client file to call variable (rcv_total) and used insert in gui file but repeating downloading and gui hanging.

my client.py file

class TFTPClient(object):

def read(self, remote, local=None, mode='octet'):
''' Create a RRQ request to a server on open up a connectionless delivery of packets via udp datagrams. '''

try:
if not self.socket:
self.socket = socket(AF_INET, SOCK_DGRAM)

success = False

if not remote:
raise TFTPException("Remote file name cannot be empty.")

if not local:
local = remote # If no local file name supplied, just use the same on we are getting from the server

self.log("read", params=(remote, local, mode), msg="Initiating RRQ request to: %s port: %s" % (self.addr))

opcode, packetnr = self.opcodes['read'], 1 # get RRQ opcode and start with packet nr 1
snd_buffer = self.request_packet(remote, mode, opcode) # create RRQ packet

# send first RRQ packet
self.socket.sendto(snd_buffer, self.addr) # open a connection and send a udp datagram to a given host
(rcv_buffer, (host, port)) = self.socket.recvfrom(self.BLK_SIZE) # get response and addr_info
rcv_total, retry_count = len(rcv_buffer), 0



# Exec time of program
start_time = time.time()

# open a stream to write
with open(local, 'wb+') as f:
while True:
try:
if packetnr % 5000 == 0:
print("Total {0} received: {1}, execution time: {2} sec".format('KB', rcv_total / 1024, time.time() - start_time))

if not host and port:
raise TFTPException("Host and port are invalid: %s:%s" % (host, port))

if rcv_buffer[1] == self.opcodes['error']:
raise TFTPException(rcv_buffer[4:])

elif (((rcv_buffer[2] << 8) & 0xff00) + rcv_buffer[3]) == packetnr & 0xffff:
f.write(rcv_buffer[4:]) # write our byte data, without the header

# Last packet was sent
if self.BLK_SIZE > len(rcv_buffer):
break

# Normal, continue to read from server
else:

# Create ACK packet
snd_buffer = self.ack_packet(packetnr)
packetnr += 1

# Send ACK packet
self.socket.sendto(snd_buffer, (host, port)) # open a connection and send a udp datagram to a given host

# Get DATA packet and new TID
(rcv_buffer, (host, port)) = self.socket.recvfrom(self.BLK_SIZE) # get response and addr_info
rcv_total += len(rcv_buffer)



except Exception as err:
message = "Packetnr: {0}, retry count: {1}, header: {2}, error: {3}ntraceback: {4}"
self.log("read: exception", params=(remote, local, mode), msg=message.format(packetnr, retry_count, rcv_buffer[:4], err, traceback.format_exc()))

if self.TIME_OUT in err.args:
retry_count += 1

if retry_count >= self.MAX_RETRY_COUNT:
print("Retried max {0} times... leaving".format(retry_count))
break
else:
self.log("read: timeout exception", params=(remote, local, mode), msg=message.format(packetnr, retry_count, rcv_buffer[:4], err, traceback.format_exc()))

elif self.NOT_FOUND in err.args:
print("File %s does not exist!" % remote)

# Unknown exception
else:
self.log("read", params=(local, remote, mode), msg="Unknown exception: %s" % err)

**return (rcv_total) >>>this variable i need to call**


2 nd file

from client import TFTPClient

class Tftp_gui(TFTPClient):

def __init__(self, root):
self.host = tkinter.StringVar(root)
self.timeout=tkinter.StringVar(root)
self.browse_value = tkinter.StringVar()
self._label7 = tkinter.LabelFrame(root, text= "packet" )
self.packet1 = tkinter.Entry(self._label7, width = 8 )


def read_command(self):
c,file_name, alt_filename= TFTPClient(self._host.get(), self._port.get(),self.timeout.get()), self.remote_file.get(), self.alt_filename.get()
self.packet1.insert(0,c.read(file_name))
if c.read(file_name, file_name if len(alt_filename) is 0 else alt_filename):

if os.path.isfile(file_name):
print('Success')


def main():
try:
userinit()
except NameError:
pass

root = Tk()
window = Tftp_gui(root)
root.title('TftpClient')
root.resizable(width=FALSE, height=FALSE)

try:
run()
except NameError:
pass

root.protocol('WM_DELETE_WINDOW', root.quit)
root.mainloop()


if name == 'main':
main()

enter image description here

It is unclear what you are asking. Please consider rewording your question to be more concise, and provide a Minimal, Complete, and Verifiable example.
– OregonJim
Jun 29 at 18:29

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