From afeaea2d6e346f627b24cc9e84e2986a7266a70e Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Wed, 1 Apr 2020 02:26:19 +0200
Subject: bpo-40094: Add missing import to wait_process() (GH-19268)

---
 Lib/test/support/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 5b9aebb..7272d47 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -3414,6 +3414,8 @@ def wait_process(pid, *, exitcode, timeout=None):
     AssertionError. The timeout feature is not available on Windows.
     """
     if os.name != "nt":
+        import signal
+
         if timeout is None:
             timeout = SHORT_TIMEOUT
         t0 = time.monotonic()
-- 
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