Partial py3k-ification of Doc/library/: convert has_key references into either 'k in d' or __contains__; normalize raise statements; convert print statements into print function calls.
diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst
index 54cce53..94f305c 100644
--- a/Doc/library/signal.rst
+++ b/Doc/library/signal.rst
@@ -144,7 +144,7 @@
def handler(signum, frame):
print 'Signal handler called with signal', signum
- raise IOError, "Couldn't open device!"
+ raise IOError("Couldn't open device!")
# Set the signal handler and a 5-second alarm
signal.signal(signal.SIGALRM, handler)