Fix postinstall and ui/notebook errors

Author: HelioGuilherme66

src/robotide/postinstall/__init__.py

@@ -46,7 +46,6 @@
 # DEBUG: Add -remove, to remove desktop shortcut
 
 ROBOT_ICO = "robot.ico"
-DEFAULT_LANGUAGE = environ.get('LANG', '').split(':')
 
 
 def verify_install():
@@ -182,6 +181,9 @@ def _create_desktop_shortcut_linux(frame=None):
                "fi": r"Työpöytä", "fr": "Bureau", "it": "Scrivania",
                "pt": r"Área de Trabalho", "zh": "Desktop"}
     user = basename(expanduser('~'))
+    DEFAULT_LANGUAGE = environ.get('LANG', '').split(':')
+    if DEFAULT_LANGUAGE is None:
+        DEFAULT_LANGUAGE = ['en_US']
     try:
         ndesktop = desktop[DEFAULT_LANGUAGE[0][:2]]
         directory = join(expanduser('~'), ndesktop)

src/robotide/ui/notebook.py

@@ -19,6 +19,7 @@
     import wx.lib.agw.aui as aui
 
 from ..publish import RideNotebookTabChanging, RideNotebookTabChanged
+from wx import wxAssertionError
 
 
 class NoteBook(aui.AuiNotebook):
@@ -85,7 +86,7 @@ def on_tab_changing(self, event):
         oldselect = event.GetOldSelection()
         try:
             oldtitle = self.GetPageText(oldselect)
-        except (wx.wxAssertionError, RuntimeError):
+        except (wxAssertionError, RuntimeError):
             oldtitle = ""
         newindex = event.GetSelection()
         newtitle = self.GetPageText(event.GetSelection())