54 lines
1.2 KiB
Python
Executable File
54 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python
|
|
from __future__ import print_function
|
|
import sys, re, operator, string
|
|
|
|
#
|
|
# The functions
|
|
#
|
|
def read_file(path_to_file, func):
|
|
with open(path_to_file) as f:
|
|
data = f.read()
|
|
func(data, normalize)
|
|
|
|
def filter_chars(str_data, func):
|
|
pattern = re.compile('[\W_]+')
|
|
func(pattern.sub(' ', str_data), scan)
|
|
|
|
def normalize(str_data, func):
|
|
func(str_data.lower(), remove_stop_words)
|
|
|
|
def scan(str_data, func):
|
|
func(str_data.split(), frequencies)
|
|
|
|
def remove_stop_words(word_list, func):
|
|
with open('../stop_words.txt') as f:
|
|
stop_words = f.read().split(',')
|
|
# add single-letter words
|
|
stop_words.extend(list(string.ascii_lowercase))
|
|
func([w for w in word_list if not w in stop_words], sort)
|
|
|
|
def frequencies(word_list, func):
|
|
wf = {}
|
|
for w in word_list:
|
|
if w in wf:
|
|
wf[w] += 1
|
|
else:
|
|
wf[w] = 1
|
|
func(wf, print_text)
|
|
|
|
def sort(wf, func):
|
|
func(sorted(wf.iteritems(), key=operator.itemgetter(1), reverse=True), no_op)
|
|
|
|
def print_text(word_freqs, func):
|
|
for (w, c) in word_freqs[0:25]:
|
|
print(w, "-", c)
|
|
func(None)
|
|
|
|
def no_op(func):
|
|
return
|
|
|
|
#
|
|
# The main function
|
|
#
|
|
read_file(sys.argv[1], filter_chars)
|