pls_handle.py

from signal import signal as _signal
from collections import defaultdict as _defaultdict

__all__ = ['pls_handle']


_pls_handlets = _defaultdict(list)


def _the_pls_handle_signal_handler(signalnum, frame):
    for function in _pls_handlets[signalnum]:
        function(signalnum, frame)


def pls_handle(signalnum):
    def _scoped_pls_handle(function):
        _signal(signalnum, _the_pls_handle_signal_handler)
        _pls_handlets[signalnum].append(function)
        return function
    return _scoped_pls_handle

z.py

from pls_handle import pls_handle
from signal import SIGWINCH, pause
import shutil


@pls_handle(SIGWINCH)
def sigwinch_handler(signalnum, frame):
    print(signalnum)


@pls_handle(SIGWINCH)
def sigwinch_handler2(signalnum, frame):
    print(shutil.get_terminal_size((80, 20)))


while 1:
    pause()