47 lines
1.3 KiB
Python
Executable File
47 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python
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import sys, re, operator, string, inspect
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def read_stop_words():
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""" This function can only be called from a function
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named extract_words."""
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# Meta-level data: inspect.stack()
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if inspect.stack()[1][3] != 'extract_words':
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return None
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with open('../stop_words.txt') as f:
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stop_words = f.read().split(',')
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stop_words.extend(list(string.ascii_lowercase))
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return stop_words
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def extract_words(path_to_file):
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# Meta-level data: locals()
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with open(locals()['path_to_file']) as f:
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str_data = f.read()
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pattern = re.compile('[\W_]+')
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word_list = pattern.sub(' ', str_data).lower().split()
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stop_words = read_stop_words()
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return [w for w in word_list if not w in stop_words]
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def frequencies(word_list):
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# Meta-level data: locals()
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word_freqs = {}
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for w in locals()['word_list']:
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if w in word_freqs:
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word_freqs[w] += 1
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else:
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word_freqs[w] = 1
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return word_freqs
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def sort(word_freq):
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# Meta-level data: locals()
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return sorted(locals()['word_freq'].items(), key=operator.itemgetter(1), reverse=True)
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def main():
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word_freqs = sort(frequencies(extract_words(sys.argv[1])))
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for (w, c) in word_freqs[0:25]:
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print(w, '-', c)
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if __name__ == "__main__":
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main()
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