- made some corrections - due of recent refactoring PyCharm reported errors all over (not correct but it made programming difficult)

- modified the requirements.txt file to force svg.path module to be at least version 4.0

flatcamGUI/preferences/excellon/ExcellonOptPrefGroupUI.py

@@ -1,17 +1,30 @@
 from PyQt5 import QtWidgets
-from PyQt5.QtCore import Qt
+from PyQt5.QtCore import Qt, QSettings
 
 from flatcamGUI.GUIElements import RadioSet, FCDoubleSpinner, FCCheckBox, FCEntry, FCSpinner, OptionalInputSection, \
     FCComboBox
 from flatcamGUI.preferences import machinist_setting
 from flatcamGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import FlatCAMTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
 
 
 class ExcellonOptPrefGroupUI(OptionsGroupUI):
 
     def __init__(self, decimals=4, parent=None):
         # OptionsGroupUI.__init__(self, "Excellon Options", parent=parent)
-        super(ExcellonOptPrefGroupUI, self).__init__(self)
+        super(ExcellonOptPrefGroupUI, self).__init__(self, parent=parent)
 
         self.setTitle(str(_("Excellon Options")))
         self.decimals = decimals
@@ -301,4 +314,4 @@ class ExcellonOptPrefGroupUI(OptionsGroupUI):
         grid2.addWidget(stdlabel, 21, 0)
         grid2.addWidget(self.slot_tooldia_entry, 21, 1)
 
-        self.layout.addStretch()
+        self.layout.addStretch()