| Methods |  | 
        
        | __init__ add_preference
 get_preference
 has_preference
 read_from_dom
 read_pref_file
 write_to_dom
 write_to_file
 
 | 
            |  | __init__ | 
        
        | 
__init__ ( self,  file_names=None )
 | 
            |  | add_preference | 
        
        | 
add_preference (
        self,
        name,
        value,
        )
 | 
            |  | get_preference | 
        
        | 
get_preference ( self,  name )
 | 
            |  | has_preference | 
        
        | 
has_preference ( self,  name )
 | 
            |  | read_from_dom | 
        
        | 
read_from_dom ( self,  doc )
 | 
            |  | read_pref_file | 
        
        | 
read_pref_file ( self,  name )
 | 
            |  | write_to_dom | 
        
        | 
write_to_dom ( self,  doc=None )
 | 
            |  | write_to_file | 
        
        | 
write_to_file ( self,  f )
 |