pybind/mgr/prometheus: catch ImportError

silences following warning from flake8

E722 do not use bare 'except'

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/pybind/mgr/prometheus/module.py b/src/pybind/mgr/prometheus/module.py
index f2abf00e4abbb01ad94b6669008e66cdbb832a7c..0c2fd00d82dc5bc01694efdbf9105379e5eee341 100644 (file)
--- a/src/pybind/mgr/prometheus/module.py
+++ b/src/pybind/mgr/prometheus/module.py
@@ -14,7 +14,7 @@ from rbd import RBD
 from collections import namedtuple
 try:
     from typing import Optional, Dict, Any, Set
-except:
+except ImportError:
     pass
 
 # Defaults for the Prometheus HTTP server.  Can also set in config-key