<s> import sys , re , operator , string <EOL> class DataStorageManager ( ) : <EOL> """<STR_LIT>""" <EOL> _data = '<STR_LIT>' <EOL> def dispatch ( self , message ) : <EOL> if message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _init ( message [ <NUM_LIT:1> ] ) <EOL> elif message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _words ( ) <EOL> else : <EOL> raise Exception ( "<STR_LIT>" + message [ <NUM_LIT:0> ] ) <EOL> def _init ( self , path_to_file ) : <EOL> with open ( path_to_file ) as f : <EOL> self . _data = f . read ( ) <EOL> pattern = re . compile ( '<STR_LIT>' ) <EOL> self . _data = pattern . sub ( '<STR_LIT:U+0020>' , self . _data ) . lower ( ) <EOL> def _words ( self ) : <EOL> """<STR_LIT>""" <EOL> data_str = '<STR_LIT>' . join ( self . _data ) <EOL> return data_str . split ( ) <EOL> class StopWordManager ( ) : <EOL> """<STR_LIT>""" <EOL> _stop_words = [ ] <EOL> def dispatch ( self , message ) : <EOL> if message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _init ( ) <EOL> elif message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _is_stop_word ( message [ <NUM_LIT:1> ] ) <EOL> else : <EOL> raise Exception ( "<STR_LIT>" + message [ <NUM_LIT:0> ] ) <EOL> def _init ( self ) : <EOL> with open ( '<STR_LIT>' ) as f : <EOL> self . _stop_words = f . read ( ) . split ( '<STR_LIT:U+002C>' ) <EOL> self . _stop_words . extend ( list ( string . ascii_lowercase ) ) <EOL> def _is_stop_word ( self , word ) : <EOL> return word in self . _stop_words <EOL> class WordFrequencyManager ( ) : <EOL> """<STR_LIT>""" <EOL> _word_freqs = { } <EOL> def dispatch ( self , message ) : <EOL> if message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _increment_count ( message [ <NUM_LIT:1> ] ) <EOL> elif message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _sorted ( ) <EOL> else : <EOL> raise Exception ( "<STR_LIT>" + message [ <NUM_LIT:0> ] ) <EOL> def _increment_count ( self , word ) : <EOL> if word in self . _word_freqs : <EOL> self . _word_freqs [ word ] += <NUM_LIT:1> <EOL> else : <EOL> self . _word_freqs [ word ] = <NUM_LIT:1> <EOL> def _sorted ( self ) : <EOL> return sorted ( self . _word_freqs . iteritems ( ) , key = operator . itemgetter ( <NUM_LIT:1> ) , reverse = True ) <EOL> class WordFrequencyController ( ) : <EOL> def dispatch ( self , message ) : <EOL> if message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _init ( message [ <NUM_LIT:1> ] ) <EOL> elif message [ <NUM_LIT:0> ] == '<STR_LIT>' : <EOL> return self . _run ( ) <EOL> else : <EOL> raise Exception ( "<STR_LIT>" + message [ <NUM_LIT:0> ] ) <EOL> def _init ( self , path_to_file ) : <EOL> self . _storage_manager = DataStorageManager ( ) <EOL> self . _stop_word_manager = StopWordManager ( ) <EOL> self . _word_freq_manager = WordFrequencyManager ( ) <EOL> self . _storage_manager . dispatch ( [ '<STR_LIT>' , path_to_file ] ) <EOL> self . _stop_word_manager . dispatch ( [ '<STR_LIT>' ] ) <EOL> def _run ( self ) : <EOL> for w in self . _storage_manager . dispatch ( [ '<STR_LIT>' ] ) : <EOL> if not self . _stop_word_manager . dispatch ( [ '<STR_LIT>' , w ] ) : <EOL> self . _word_freq_manager . dispatch ( [ '<STR_LIT>' , w ] ) <EOL> word_freqs = self . _word_freq_manager . dispatch ( [ '<STR_LIT>' ] ) <EOL> for ( w , c ) in word_freqs [ <NUM_LIT:0> : <NUM_LIT> ] : <EOL> print w , '<STR_LIT>' , c <EOL> wfcontroller = WordFrequencyController ( ) <EOL> wfcontroller . dispatch ( [ '<STR_LIT>' , sys . argv [ <NUM_LIT:1> ] ] ) <EOL> wfcontroller . dispatch ( [ '<STR_LIT>' ] ) </s>
