<s> import sys , re , operator , collections <EOL> class WordFrequenciesModel : <EOL> """<STR_LIT>""" <EOL> freqs = { } <EOL> stopwords = set ( open ( '<STR_LIT>' ) . read ( ) . split ( '<STR_LIT:U+002C>' ) ) <EOL> def __init__ ( self , path_to_file ) : <EOL> self . update ( path_to_file ) <EOL> def update ( self , path_to_file ) : <EOL> try : <EOL> words = re . findall ( '<STR_LIT>' , open ( path_to_file ) . read ( ) . lower ( ) ) <EOL> self . freqs = collections . Counter ( w for w in words if w not in self . stopwords ) <EOL> except IOError : <EOL> print "<STR_LIT>" <EOL> self . freqs = { } <EOL> class WordFrequenciesView : <EOL> def __init__ ( self , model ) : <EOL> self . _model = model <EOL> def render ( self ) : <EOL> sorted_freqs = sorted ( self . _model . freqs . iteritems ( ) , key = operator . itemgetter ( <NUM_LIT:1> ) , reverse = True ) <EOL> for ( w , c ) in sorted_freqs [ <NUM_LIT:0> : <NUM_LIT> ] : <EOL> print w , '<STR_LIT:->' , c <EOL> class WordFrequencyController : <EOL> def __init__ ( self , model , view ) : <EOL> self . _model , self . _view = model , view <EOL> view . render ( ) <EOL> def run ( self ) : <EOL> while True : <EOL> print "<STR_LIT>" <EOL> sys . stdout . flush ( ) <EOL> filename = sys . stdin . readline ( ) . strip ( ) <EOL> self . _model . update ( filename ) <EOL> self . _view . render ( ) <EOL> m = WordFrequenciesModel ( sys . argv [ <NUM_LIT:1> ] ) <EOL> v = WordFrequenciesView ( m ) <EOL> c = WordFrequencyController ( m , v ) <EOL> c . run ( ) </s>
