pyCharm inspection fixes. Mostly variable refernce issues

gui/builtinContextMenus/moduleAmmoPicker.py

@@ -157,7 +157,7 @@ class ModuleAmmoPicker(ContextMenu):
                     item = self.addCharge(rootMenu if msw else m, charge)
                     items.append(item)
                 else:
-                    if sub is None:
+                    if sub is None and item and base:
                         sub = wx.Menu()
                         sub.Bind(wx.EVT_MENU, self.handleAmmoSwitch)
                         self.addSeperator(sub, "Less Damage")

gui/builtinContextMenus/moduleGlobalAmmoPicker.py

@@ -9,6 +9,7 @@ from service.fit import Fit
 
 class ModuleGlobalAmmoPicker(ModuleAmmoPicker):
     def __init__(self):
+        super(ModuleGlobalAmmoPicker, self).__init__()
         self.mainFrame = gui.mainFrame.MainFrame.getInstance()
 
     def getText(self, itmContext, selection):