tooledit: throw exeption when locale not set

Author: hansu

.gitignore

@@ -59,3 +59,5 @@ docs/help/hu/*
 docs/help/nb/*
 docs/help/vi/*
 docs/help/zh_CN/*
+configs/**/*.tbl.bak
+configs/**/halshow.preferences

lib/python/gladevcp/tooledit_widget.py

@@ -331,6 +331,10 @@ def save(self,widget):
                 self.warning_dialog(line_number)
                 return
 
+        if(locale.getlocale(locale.LC_NUMERIC)[0] is None):
+            raise ExceptionMessage("\n\n"+_("Something wrong with the locale settings. Will not save the tool table."))
+            return
+
         shutil.copy(self.toolfile, self.toolfile + ".bak")
         file = open(self.toolfile, "w")
         #print self.toolfile