Andrey Dugin

cx_Freeze is a set of scripts and modules for freezing Python scripts
into executables, in much the same way that py2exe and py2app do.
Unlike these two tools, cx_Freeze is cross platform and should work
on any platform that Python itself works on. It supports Python 2.7
or higher (including Python 3).

from collections import Counter, defaultdict
from itertools import imap
import re

codes = ['200', '3xx', '4xx', '5xx']
regex = re.compile('^.+?\[(?P<date>.+?) .+?\].+?(?P<code>\d+) \d+ ".+?" ".+?"$')
stats = defaultdict(Counter)

with open('access.log', 'r') as f:
    for date, code in (match.groups() for match in imap(regex.match, f) if match):
        stats[date].update([code if code == '200' else '{}xx'.format(code[0])])

for date, items in sorted(stats.iteritems()):
    print date, ' '.join(str(items[code]) for code in codes)

# ---------- И ещё вариант ----------

from collections import Counter, defaultdict
from itertools import imap
from operator import methodcaller as mc
import re

codes = ['200', '3xx', '4xx', '5xx']
regex = re.compile('^.+?\[(?P<date>.+?) .+?\].+?(?P<code>\d+) \d+ ".+?" ".+?"$')
stats = defaultdict(Counter)

def fmt(code):
    return code if code == '200' else '%sxx' % code[0],

with open('access.log', 'r') as f:
    reduce(
        lambda _, (date, code): stats[date].update(fmt(code)),
        imap(mc('groups'), imap(regex.match, f)), None
    )

for date, items in sorted(stats.iteritems()):
    print date, ' '.join(imap(str, imap(items.__getitem__, codes)))

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