Ways to get number of seconds from Epoch

[Fredrik Lundh]

Václav Sigmund wrote:> I am a Python newbie and I sudenly run into following problem:
>
> I would like to write a tool to analyze the access.log records from my
> company's webserver, and it would  be very convenient for to convert dates
> date of the record into number of seconds from Epoch (let's call it
> "standard unix time" for convenience).
>
> Each record have recorded time as follows:
>
> [15/Apr/2002:08:28:56 +0200]

is that gmt+zone or localtime-zone?  cannot remember.
but here's a reasonable start:

import re, calendar, time

text = "[15/Apr/2002:08:28:56 +0200]"

MONTHS = [
    None,
    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
    ]

p = re.compile("\[(\d+)/(\w+)/(\d+):(\d+):(\d+):(\d+) ([-+]\d+)\]")
m = p.match(text)

# extract date/time fields
year, day = map(int, m.group(3, 1))
month = calendar.month_abbr.index(m.group(2))
hour, minute, second = map(int, m.group(4, 5, 6))
offset = int(m.group(7))

unixtime = calendar.timegm((year, month, day, hour, minute, second))

print time.gmtime(unixtime)
# prints (2002, 4, 15, 8, 28, 56, 0, 105, 0)

</F>

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