diff --git a/src/tests/test_domains.py b/src/tests/test_domains.py
index cbdd412a7..272f5bb4d 100644
--- a/src/tests/test_domains.py
+++ b/src/tests/test_domains.py
@@ -73,8 +73,8 @@ def test_domain_add():
 
 
 def test_domain_add_subscribe():
-    
-    time.sleep(35) # Dynette blocks requests that happen too frequently
+
+    time.sleep(35)  # Dynette blocks requests that happen too frequently
     assert TEST_DYNDNS_DOMAIN not in domain_list()["domains"]
     domain_add(TEST_DYNDNS_DOMAIN, subscribe=TEST_DYNDNS_PASSWORD)
     assert TEST_DYNDNS_DOMAIN in domain_list()["domains"]
@@ -94,7 +94,7 @@ def test_domain_remove():
 
 def test_domain_remove_unsubscribe():
 
-    time.sleep(35) # Dynette blocks requests that happen too frequently
+    time.sleep(35)  # Dynette blocks requests that happen too frequently
     assert TEST_DYNDNS_DOMAIN in domain_list()["domains"]
     domain_remove(TEST_DYNDNS_DOMAIN, unsubscribe=TEST_DYNDNS_PASSWORD)
     assert TEST_DYNDNS_DOMAIN not in domain_list()["domains"]
diff --git a/src/tools.py b/src/tools.py
index 032bbea9f..6dcc262ad 100644
--- a/src/tools.py
+++ b/src/tools.py
@@ -180,7 +180,7 @@ def _detect_virt():
     return out.split()[0]
 
 
-@is_unit_operation(exclude=["subscribe","password"])
+@is_unit_operation(exclude=["subscribe", "password"])
 def tools_postinstall(
     operation_logger,
     domain,