Add Python Timeout Decorator Schnippet

Adding in the Timeout decorator I found in a Stackoverflow answer
that allows you to set a timeout for any other callable.

python_utils/timeout_decorator.py

+from functools import wraps
+import errno
+import os
+import signal
+
+class TimeoutError(Exception):
+    """Generic Timeout Error."""
+
+def timeout(seconds=10, error_message=os.strerror(errno.ETIME)):
+    """Timeout decorator to wrap around another callable.
+
+    https://stackoverflow.com/questions/2281850/timeout-function-if-it-takes-too-long-to-finish
+    """
+    def decorator(func):
+        def _handle_timeout(signum, frame):
+            raise TimeoutError(error_message)
+
+        def wrapper(*args, **kwargs):
+            signal.signal(signal.SIGALRM, _handle_timeout)
+            signal.alarm(seconds)
+            try:
+                result = func(*args, **kwargs)
+            finally:
+                signal.alarm(0)
+            return result
+
+        return wraps(func)(wrapper)
+
+    return decorator