()
| 47 | |
| 48 | _interrupt_handler = None |
| 49 | def installHandler(): |
| 50 | global _interrupt_handler |
| 51 | if _interrupt_handler is None: |
| 52 | default_handler = signal.getsignal(signal.SIGINT) |
| 53 | _interrupt_handler = _InterruptHandler(default_handler) |
| 54 | signal.signal(signal.SIGINT, _interrupt_handler) |
| 55 | |
| 56 | |
| 57 | def removeHandler(method=None): |
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