+ def get_str_list(self, name):
+ """ Return the given configuration parameter as a list of strings.
+ The values are assumed to be given as a comma-sparated list and
+ will be stripped before returning them. On empty values None
+ is returned.
+ """
+ raw = getattr(self, name)
+
+ return [v.strip() for v in raw.split(',')] if raw else None
+
+