Files
exercises-in-programming-style/29-trinity/tf-29.py
2013-11-19 18:15:58 -08:00

45 lines
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Python
Executable File

#!/usr/bin/env python
import sys, re, operator, collections
#
# Model
#
class WordFrequenciesModel:
""" Models the data. In this case, we're only interested
in words and their frequencies as an end result """
freqs = {}
def __init__(self, path_to_file):
stopwords = set(open('../stop_words.txt').read().split(','))
words = re.findall('[a-z]{2,}', open(path_to_file).read().lower())
self.freqs = collections.Counter(w for w in words if w not in stopwords)
#
# View
#
class WordFrequenciesView:
def __init__(self, model):
self._model = model
def render(self):
sorted_freqs = sorted(self._model.freqs.iteritems(), key=operator.itemgetter(1), reverse=True)
for (w, c) in sorted_freqs[:25]:
print w, '-', c
#
# Controller
#
class WordFrequencyController:
def __init__(self, model, view):
self._model = model
self._view = view
view.render()
#
# Main
#
m = WordFrequenciesModel(sys.argv[1])
v = WordFrequenciesView(m)
c = WordFrequencyController(m, v)