Files
exercises-in-programming-style/18-aspects/tf-18.py
2014-03-14 10:27:59 -07:00

50 lines
1.3 KiB
Python
Executable File

#!/usr/bin/env python
import sys, re, operator, string, time
#
# The functions
#
def extract_words(path_to_file):
with open(path_to_file) as f:
str_data = f.read()
pattern = re.compile('[\W_]+')
word_list = pattern.sub(' ', str_data).lower().split()
with open('../stop_words.txt') as f:
stop_words = f.read().split(',')
stop_words.extend(list(string.ascii_lowercase))
return [w for w in word_list if not w in stop_words]
def frequencies(word_list):
word_freqs = {}
for w in word_list:
if w in word_freqs:
word_freqs[w] += 1
else:
word_freqs[w] = 1
return word_freqs
def sort(word_freq):
return sorted(word_freq.iteritems(), key=operator.itemgetter(1), reverse=True)
# The side functionality
def profile(f):
def profilewrapper(*arg, **kw):
start_time = time.time()
ret_value = f(*arg, **kw)
elapsed = time.time() - start_time
print "%s(...) took %s secs" % (f.__name__, elapsed)
return ret_value
return profilewrapper
# join points
tracked_functions = [extract_words, frequencies, sort]
# weaver
for func in tracked_functions:
globals()[func.func_name]=profile(func)
word_freqs = sort(frequencies(extract_words(sys.argv[1])))
for (w, c) in word_freqs[0:25]:
print w, ' - ', c