Apache のログの日時を Excel が認識できる形式に変換

apalogconvert.py

#!/usr/bin/env python

import sys
import re
from datetime import datetime

for line in sys.stdin:
    m = re.search('\[(\d{2}/[A-Z][a-z]{2}/\d{4}:\d{2}:\d{2}:\d{2}) .{0,6}\]', line)
    if m:
        d = datetime.strptime(m.group(1), '%d/%b/%Y:%H:%M:%S')
        line = re.sub(r'\[\d{2}/[A-Z][a-z]{2}/\d{4}:\d{2}:\d{2}:\d{2} .{0,6}\]', str(d), line, 1)
    sys.stdout.write(line)