fix

chassis/chassis.py

@@ -1,6 +1,4 @@
 import logging
-
-from jaeger_client import Config
 from logstash_formatter import LogstashFormatterV1
 from statsd import StatsClient
 
@@ -20,6 +18,7 @@ def init_logger():
 
 
 def init_tracer(service):
+    from jaeger_client import Config
     config = Config(
         config={
             'sampler': {