interesting... what terminal are you using?

I use urxvt (packaged in Debian as rxvt-unicode)

Could you check whether #96 fixes the problem?

Nope, it doesn't.

Had a closer look, though. When running vicc in strace, it has this to say:

recvfrom(3, 0x7f7a91507f7c, 2, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
--- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} ---
rt_sigreturn({mask=[]})                 = -1 EINTR (Interrupted system call)
close(3)                                = 0
rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7f7a9a4f00c0}, {sa_handler=0x55b34095ae60, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7f7a9a4f00c0}, 8) = 0

... so the problem is that when a signal arrives and the system call is therefore cancelled, that condition isn't handled, and the program is ended rather than the recv() restarted.

I'm not that well versed in python, but if I check the docs, you should be able to figure this out by doing

import ctypes
import errno
recv(...)
if ctypes.get_errno() == errno.EINTR:
    # retry the recv
else:
   # handle error

probably using some loop etc.

I'll see if I can test that theory later this week, will try to whip up a patch.

never mind, I fixed this already 😉