diff --git a/plugins/VersionUpgrade/VersionUpgrade41to42/VersionUpgrade41to42.py b/plugins/VersionUpgrade/VersionUpgrade41to42/VersionUpgrade41to42.py
index 305cce16c6..4b7e291482 100644
--- a/plugins/VersionUpgrade/VersionUpgrade41to42/VersionUpgrade41to42.py
+++ b/plugins/VersionUpgrade/VersionUpgrade41to42/VersionUpgrade41to42.py
@@ -239,7 +239,7 @@ class VersionUpgrade41to42(VersionUpgrade):
     #
     #   This renames the renamed settings in the containers.
     def upgradeInstanceContainer(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
-        parser = configparser.ConfigParser(interpolation = None, comment_prefixes=())
+        parser = configparser.ConfigParser(interpolation = None, comment_prefixes = ())
         parser.read_string(serialized)
 
         # Update version number.
diff --git a/plugins/VersionUpgrade/VersionUpgrade42to43/VersionUpgrade42to43.py b/plugins/VersionUpgrade/VersionUpgrade42to43/VersionUpgrade42to43.py
index d6489f6d8b..4142053047 100644
--- a/plugins/VersionUpgrade/VersionUpgrade42to43/VersionUpgrade42to43.py
+++ b/plugins/VersionUpgrade/VersionUpgrade42to43/VersionUpgrade42to43.py
@@ -104,7 +104,7 @@ class VersionUpgrade42to43(VersionUpgrade):
     #
     #   This renames the renamed settings in the containers.
     def upgradeInstanceContainer(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
-        parser = configparser.ConfigParser(interpolation = None, comment_prefixes=())
+        parser = configparser.ConfigParser(interpolation = None, comment_prefixes = ())
         parser.read_string(serialized)
 
         # Update version number.
diff --git a/plugins/VersionUpgrade/VersionUpgrade43to44/VersionUpgrade43to44.py b/plugins/VersionUpgrade/VersionUpgrade43to44/VersionUpgrade43to44.py
index 8b69852cb2..f3453527bc 100644
--- a/plugins/VersionUpgrade/VersionUpgrade43to44/VersionUpgrade43to44.py
+++ b/plugins/VersionUpgrade/VersionUpgrade43to44/VersionUpgrade43to44.py
@@ -52,7 +52,7 @@ class VersionUpgrade43to44(VersionUpgrade):
     #
     #   This renames the renamed settings in the containers.
     def upgradeInstanceContainer(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
-        parser = configparser.ConfigParser(interpolation = None, comment_prefixes=())
+        parser = configparser.ConfigParser(interpolation = None, comment_prefixes = ())
         parser.read_string(serialized)
 
         # Update version number.
diff --git a/plugins/VersionUpgrade/VersionUpgrade44to45/VersionUpgrade44to45.py b/plugins/VersionUpgrade/VersionUpgrade44to45/VersionUpgrade44to45.py
index 6b75ed88a3..5505f0bb79 100644
--- a/plugins/VersionUpgrade/VersionUpgrade44to45/VersionUpgrade44to45.py
+++ b/plugins/VersionUpgrade/VersionUpgrade44to45/VersionUpgrade44to45.py
@@ -31,7 +31,7 @@ class VersionUpgrade44to45(VersionUpgrade):
     #
     #   This renames the renamed settings in the containers.
     def upgradeInstanceContainer(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
-        parser = configparser.ConfigParser(interpolation = None, comment_prefixes=())
+        parser = configparser.ConfigParser(interpolation = None, comment_prefixes = ())
         parser.read_string(serialized)
 
         # Update version number.