From 9d3627e311211a1b4abcda29c36fe4afe2c46532 Mon Sep 17 00:00:00 2001
From: Antoine Pitrou <pitrou@free.fr>
Date: Fri, 4 May 2018 13:00:50 +0200
Subject: bpo-33332: Add signal.valid_signals() (GH-6581)

---
 Lib/asyncio/unix_events.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'Lib/asyncio/unix_events.py')

diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py
index 6cac137cacb..f64037a25c6 100644
--- a/Lib/asyncio/unix_events.py
+++ b/Lib/asyncio/unix_events.py
@@ -167,8 +167,8 @@ class _UnixSelectorEventLoop(selector_events.BaseSelectorEventLoop):
         if not isinstance(sig, int):
             raise TypeError(f'sig must be an int, not {sig!r}')
 
-        if not (1 <= sig < signal.NSIG):
-            raise ValueError(f'sig {sig} out of range(1, {signal.NSIG})')
+        if sig not in signal.valid_signals():
+            raise ValueError(f'invalid signal number {sig}')
 
     def _make_read_pipe_transport(self, pipe, protocol, waiter=None,
                                   extra=None):
-- 
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