Remove a number of unused imports

plugins/FirmwareUpdateChecker/FirmwareUpdateCheckerJob.py

@@ -9,7 +9,7 @@ from UM.Version import Version
 
 import urllib.request
 from urllib.error import URLError
-from typing import Dict, Optional
+from typing import Dict
 import ssl
 
 import certifi

plugins/PostProcessingPlugin/scripts/Stretch.py

@@ -10,10 +10,10 @@ WARNING This script has never been tested with several extruders
 from ..Script import Script
 import numpy as np
 from UM.Logger import Logger
-from UM.Application import Application
 import re
 from cura.Settings.ExtruderManager import ExtruderManager
 
+
 def _getValue(line, key, default=None):
     """
     Convenience function that finds the value in a line of g-code.
@@ -30,6 +30,7 @@ def _getValue(line, key, default=None):
         return default
     return float(number.group(0))
 
+
 class GCodeStep():
     """
     Class to store the current value of each G_Code parameter
@@ -85,7 +86,7 @@ class GCodeStep():
 
 
 # Execution part of the stretch plugin
-class Stretcher():
+class Stretcher:
     """
     Execution part of the stretch algorithm
     """
@@ -207,7 +208,6 @@ class Stretcher():
             return False
         return True # New sequence
 
-
     def processLayer(self, layer_steps):
         """
         Computes the new coordinates of g-code steps
@@ -291,7 +291,6 @@ class Stretcher():
             else:
                 self.layergcode = self.layergcode + layer_steps[i].comment + "\n"
 
-
     def workOnSequence(self, orig_seq, modif_seq):
         """
         Computes new coordinates for a sequence

plugins/UM3NetworkPrinting/src/Network/SendMaterialJob.py

@@ -6,7 +6,6 @@ from PyQt5.QtNetwork import QNetworkReply, QNetworkRequest
 
 from UM.Job import Job
 from UM.Logger import Logger
-from UM.Settings import ContainerRegistry
 from cura.CuraApplication import CuraApplication
 
 from ..Models.Http.ClusterMaterial import ClusterMaterial

plugins/XmlMaterialProfile/XmlMaterialProfile.py

@@ -5,7 +5,6 @@ import copy
 import io
 import json #To parse the product-to-id mapping file.
 import os.path #To find the product-to-id mapping.
-import sys
 from typing import Any, Dict, List, Optional, Tuple, cast, Set, Union
 import xml.etree.ElementTree as ET
 
@@ -18,7 +17,6 @@ from UM.Settings.ContainerRegistry import ContainerRegistry
 from UM.ConfigurationErrorMessage import ConfigurationErrorMessage
 
 from cura.CuraApplication import CuraApplication
-from cura.Machines.ContainerTree import ContainerTree
 from cura.Machines.VariantType import VariantType
 
 try:

plugins/XmlMaterialProfile/tests/TestXmlMaterialProfile.py

@@ -1,6 +1,4 @@
 from unittest.mock import patch, MagicMock
-import sys
-import os
 
 # Prevents error: "PyCapsule_GetPointer called with incorrect name" with conflicting SIP configurations between Arcus and PyQt: Import Arcus and Savitar first!
 import Savitar  # Dont remove this line