test server: use set of signals

jku · chrahunt · web-flow · commit 23ec070cf1ff · 2020-07-02T18:00:29.000+03:00
This is what signal.pthread_sigmask() really wants and matches signal.valid_signals() output

Co-authored-by: Christopher Hunt &lt;chrahunt@gmail.com&gt;
diff --git a/tests/lib/server.py b/tests/lib/server.py
@@ -47,7 +47,7 @@ def blocked_signals():
         try:
             mask = signal.valid_signals()
         except AttributeError:
-            mask = range(1, signal.NSIG)
+            mask = set(range(1, signal.NSIG))
 
         old_mask = signal.pthread_sigmask(signal.SIG_SETMASK, mask)
         try:
