Sockets and Sendmail

[taintedsushi]

I have a socket client program that resends any received data to other connected clients.

I just added a function to send an email when certain data is received. I pass the data to the sendemail function and the email is sent.

However, when the program returns from the sendemail routine, I end up with a KeyError. If I comment out the actual sendmail() command, no KeyError is produced.

I can't figure out how these two things are related or what to do to fix it.

This all seems to work fine:

try:
  data = s.recv(64)
except socket.error, ex:
  print ex
if data:

# A readable client socket has data
    print '> ', data
    message_queues[s].put(data)

# Add output channel for response

if s not in outputs:
    outputs.append(s)
    update_html(data)
    checknewtrack(data)
    if (newtrack):
        sendemail()

But after coming back from the sendemail() function, it chokes on this code :

for s in writeable:
try:
    next_msg = message_queues[s].get_nowait() <---- KEYERROR HERE
except Queue.Empty:
    outputs.remove(s)
else:
    for t in connected_clients:
        t.send(next_msg)

Error:
Traceback (most recent call last):
File "/home/user/bin/lora-gateway.py", line 192, in <module>
  do_work( True)
File "/home/user/bin/lora-gateway.py", line 135, in do_work
  next_msg = message_queues[s].get_nowait()
KeyError: <socket._socketobject object at 0x7f43a6617c20>

Any help would be appreciated.