diff --git a/core/helpers/log_helpers.py b/core/helpers/log_helpers.py
index 829d8181d..a58c40ad0 100644
--- a/core/helpers/log_helpers.py
+++ b/core/helpers/log_helpers.py
@@ -266,4 +266,5 @@ class QuietLogger(object):
     def __exit__(self, exc_type, exc_value, exc_tb):
         logging.StreamHandler().setLevel(self.level)
 
+
 __all__ = ['logwrap', 'QuietLogger', 'logger']
diff --git a/core/models/fuel_client/client.py b/core/models/fuel_client/client.py
index b4dacb056..b7ec92935 100644
--- a/core/models/fuel_client/client.py
+++ b/core/models/fuel_client/client.py
@@ -31,4 +31,5 @@ class Client(object):
 
         self.ostf = ostf_client.OSTFClient(ostf_clnt)
 
+
 __all__ = ['Client']
diff --git a/fuelweb_test/config_templates/prepare_release_image.py b/fuelweb_test/config_templates/prepare_release_image.py
index 60a09c047..758a69d9a 100644
--- a/fuelweb_test/config_templates/prepare_release_image.py
+++ b/fuelweb_test/config_templates/prepare_release_image.py
@@ -54,5 +54,6 @@ def execute():
                         "{cluster.id}",
                         release_str))
 
+
 if __name__ == '__main__':
     execute()
diff --git a/fuelweb_test/settings.py b/fuelweb_test/settings.py
index 4211b592e..5fc33da9e 100644
--- a/fuelweb_test/settings.py
+++ b/fuelweb_test/settings.py
@@ -24,6 +24,7 @@ def get_var_as_bool(name, default):
     value = os.environ.get(name, '')
     return _boolean_states.get(value.lower(), default)
 
+
 # Default timezone for clear logging
 TIME_ZONE = 'UTC'
 
@@ -50,6 +51,7 @@ INTERFACES_DICT = {
 def iface_alias(interface_name):
     return INTERFACES_DICT[interface_name]
 
+
 ISO_PATH = os.environ.get('ISO_PATH')
 LOGS_DIR = os.environ.get('LOGS_DIR', os.getcwd())
 # cdrom or usb
diff --git a/fuelweb_test/testrail/generate_failure_group_statistics.py b/fuelweb_test/testrail/generate_failure_group_statistics.py
index 948408a7f..170eac58e 100644
--- a/fuelweb_test/testrail/generate_failure_group_statistics.py
+++ b/fuelweb_test/testrail/generate_failure_group_statistics.py
@@ -840,5 +840,6 @@ def main():
             logger.info('Statistics have not been published'
                         'due to internal issue')
 
+
 if __name__ == '__main__':
     sys.exit(main())
diff --git a/fuelweb_test/testrail/report_tempest_results.py b/fuelweb_test/testrail/report_tempest_results.py
index 09cd1d247..d4fa47bc9 100644
--- a/fuelweb_test/testrail/report_tempest_results.py
+++ b/fuelweb_test/testrail/report_tempest_results.py
@@ -277,5 +277,6 @@ def main():
     LOG.info('The results of Tempest tests have been uploaded.')
     LOG.info('Report URL: {0}'.format(test_plan['url']))
 
+
 if __name__ == "__main__":
     main()
diff --git a/fuelweb_test/testrail/upload_cases_description.py b/fuelweb_test/testrail/upload_cases_description.py
index dd9b464ee..b018c74ca 100644
--- a/fuelweb_test/testrail/upload_cases_description.py
+++ b/fuelweb_test/testrail/upload_cases_description.py
@@ -508,5 +508,6 @@ def main():
                               tests=tests_descriptions,
                               check_all_sections=not options.check_one_section)
 
+
 if __name__ == '__main__':
     main()
diff --git a/system_test/core/repository.py b/system_test/core/repository.py
index fdf298aa2..8c5fc4932 100644
--- a/system_test/core/repository.py
+++ b/system_test/core/repository.py
@@ -80,6 +80,7 @@ class TestCaseRepository(set):
         raise AttributeError("'TestCaseRepository' object has no attribute "
                              " 'update'")
 
+
 Repository = TestCaseRepository()
 
 
diff --git a/utils/jenkins/conv_snapshot_file.py b/utils/jenkins/conv_snapshot_file.py
index e3918ae0b..6532f4398 100755
--- a/utils/jenkins/conv_snapshot_file.py
+++ b/utils/jenkins/conv_snapshot_file.py
@@ -207,5 +207,6 @@ def main():
 
     write_test_vars(SNAPSHOT_OUTPUT_FILE, test_variables)
 
+
 if __name__ == '__main__':
     main()
diff --git a/utils/jenkins/fuel_logs.py b/utils/jenkins/fuel_logs.py
index 0f504270f..9bb7b6bbf 100755
--- a/utils/jenkins/fuel_logs.py
+++ b/utils/jenkins/fuel_logs.py
@@ -885,5 +885,6 @@ class FuelLogs(object):
 
 ##############################################################################
 
+
 if __name__ == '__main__':
     IO.main()