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signals.pyc
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Python Compiled Bytecode
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2014-12-31
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76 lines
# Source Generated with Decompyle++
# File: in.pyc (Python 2.7)
import signal
import weakref
from functools import wraps
__unittest = True
class _InterruptHandler(object):
def __init__(self, default_handler):
self.called = False
self.original_handler = default_handler
if isinstance(default_handler, int):
if default_handler == signal.SIG_DFL:
default_handler = signal.default_int_handler
elif default_handler == signal.SIG_IGN:
def default_handler(unused_signum, unused_frame):
pass
else:
raise TypeError('expected SIGINT signal handler to be signal.SIG_IGN, signal.SIG_DFL, or a callable object')
self.default_handler = default_handler
def __call__(self, signum, frame):
installed_handler = signal.getsignal(signal.SIGINT)
if installed_handler is not self:
self.default_handler(signum, frame)
if self.called:
self.default_handler(signum, frame)
self.called = True
for result in _results.keys():
result.stop()
_results = weakref.WeakKeyDictionary()
def registerResult(result):
_results[result] = 1
def removeResult(result):
return bool(_results.pop(result, None))
_interrupt_handler = None
def installHandler():
global _interrupt_handler
if _interrupt_handler is None:
default_handler = signal.getsignal(signal.SIGINT)
_interrupt_handler = _InterruptHandler(default_handler)
signal.signal(signal.SIGINT, _interrupt_handler)
def removeHandler(method = None):
if method is not None:
def inner(*args, **kwargs):
initial = signal.getsignal(signal.SIGINT)
removeHandler()
try:
return method(*args, **kwargs)
finally:
signal.signal(signal.SIGINT, initial)
inner = (wraps(method),)(inner)
return inner
if None is not None:
signal.signal(signal.SIGINT, _interrupt_handler.original_handler)