L2SS-780: fix imports

tangostationcontrol/tangostationcontrol/integration_test/default/prometheus/test_tango_prometheus_client.py

@@ -7,14 +7,15 @@
 # Distributed under the terms of the APACHE license.
 # See LICENSE.txt for more info.
 
-from tangostationcontrol.integration_test.base import BaseIntegrationTestCase
-from tangostationcontrol.integration_test.device_proxy import TestDeviceProxy
-
-from tango import Database
 import importlib
 import sys, os
 import numpy
 
+from tango import Database
+
+from tangostationcontrol.integration_test.base import BaseIntegrationTestCase
+from tangostationcontrol.integration_test.device_proxy import TestDeviceProxy
+
 module_name = 'ArchiverPolicy'
 file_path = os.path.join(os.path.realpath('..'), 'docker-compose/tango-prometheus-exporter/code/tango-prometheus-client.py')
 spec = importlib.util.spec_from_file_location(module_name, file_path)