diff --git a/plugins/FirmwareUpdater/__init__.py b/plugins/FirmwareUpdater/__init__.py
index 58c351a4ea..5a008d7d15 100644
--- a/plugins/FirmwareUpdater/__init__.py
+++ b/plugins/FirmwareUpdater/__init__.py
@@ -4,10 +4,9 @@
 from . import FirmwareUpdaterMachineAction
 
 def getMetaData():
-    return {
-    }
+    return {}
 
 def register(app):
     return { "machine_action": [
-        FirmwareUpdaterMachineAction.FirmwareUpdaterMachineAction(),
+        FirmwareUpdaterMachineAction.FirmwareUpdaterMachineAction()
     ]}
diff --git a/plugins/USBPrinting/__init__.py b/plugins/USBPrinting/__init__.py
index 0cb68d3865..075ad2943b 100644
--- a/plugins/USBPrinting/__init__.py
+++ b/plugins/USBPrinting/__init__.py
@@ -2,9 +2,6 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from . import USBPrinterOutputDeviceManager
-from PyQt5.QtQml import qmlRegisterSingletonType
-from UM.i18n import i18nCatalog
-i18n_catalog = i18nCatalog("cura")
 
 
 def getMetaData():
diff --git a/plugins/UltimakerMachineActions/__init__.py b/plugins/UltimakerMachineActions/__init__.py
index 30493536ce..e87949580a 100644
--- a/plugins/UltimakerMachineActions/__init__.py
+++ b/plugins/UltimakerMachineActions/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2016 Ultimaker B.V.
+# Copyright (c) 2018 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from . import BedLevelMachineAction
@@ -6,8 +6,7 @@ from . import UMOUpgradeSelection
 from . import UM2UpgradeSelection
 
 def getMetaData():
-    return {
-    }
+    return {}
 
 def register(app):
     return { "machine_action": [