Checks if there is a specific character string for all files under the directory that is Python and outputs the target line

Overview

[DIR_NAME] For all files below Check if it is a text file with the character code defined in [TARGET_ENCODING_LIST], If it is a text file, search for [SEARCH_WORD] and The result is output to the file name of [OUTPUT_NAME].

environment

Windows8 + Python2.6 series

code

find_directory.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
# vim: fileencoding=utf-8

import os , sys , codecs

DIR_NAME = 'C:\\html\\HOGE\\'
OUTPUT_NAME = 'result_find_file_list.csv'

SEARCH_WORD = '<font'

TARGET_ENCODINGS = [
	'utf-8',
	'shift-jis',
	'euc-jp',
	'iso2022-jp'
]

FLAG_STDOUT = True
#FLAG_STDOUT = False

import os, sys

write = sys.stdout.write

def guess_charset(data):
	file = lambda d, encoding: d.decode(encoding) and encoding
	for enc in TARGET_ENCODINGS:
		try:
			file(data, enc)
			return enc
		except:
			pass
	return 'binary'

out = codecs.open(OUTPUT_NAME, 'w', 'shift-jis')
out.write('path,line_number,search,target_line\n')

for dirpath, dirs, files in os.walk(DIR_NAME):
	for fn in files:
		path = os.path.join(dirpath, fn)
		fobj = file(path, 'rU')
		data = fobj.read()
		fobj.close()
		try:
			enc = guess_charset(data)
		except:
			continue
		if enc == 'binary':
			continue
		count = 0
		try:
			for l in codecs.open(path, 'r', enc):
				count = count + 1
				if SEARCH_WORD in l:
					output = ''
					try:
						output = '"' + path + '","' + str(count) + '","' + SEARCH_WORD + '","' + l.replace('"',"'").replace('\r','').replace('\n','') + '"\r\n'
					except:
						continue
					if FLAG_STDOUT == True:
						write(output)
					out.write(output)
		except:
			continue

Supplement

As usual, exception handling is appropriate. There is room for refactoring, but I want to put it in the actual battle tomorrow, so I will post it as it is