web access log show utc time instead local time with timezone.

[NewUserHa]

Long story short

in web_.log.py:

    def _format_t(request: BaseRequest,
                  response: StreamResponse,
                  time: float) -> str:
        now = datetime.datetime.utcnow()
        start_time = now - datetime.timedelta(seconds=time)
        return start_time.strftime('[%d/%b/%Y:%H:%M:%S +0000]')

the logged time is fixed and is a utc time, not a local time. there's not a easy way to setting it.

Expected behaviour

INFO:aiohttp.access:127.0.0.1 [18/Jun/2019:04:56:22 -8]

Actual behaviour

INFO:aiohttp.access:127.0.0.1 [18/Jun/2019:04:56:22 +0000]

[asvetlov]

UTC time is intentional.

[webknjaz]

It's nice to make it customizable. I see it being useful during the development in particular.

@NewUserHa feel free to research improving this and send a PR.

[NewUserHa]

nginx's access.log is [16/Jun/2019:15:25:04 +0800]

what about making _format_t to obey OS or python's timezone info? I doubt adding a parameter for customing will work.

[asvetlov]

What is apache behavior?

[NewUserHa]

127.0.0.1 - frank [10/Oct/2000:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 from https://httpd.apache.org/docs/2.4/logs.html

[asvetlov]

Ok, I have no objections for changing defaults to use local time instead of UTC. The output should include a timezone offset like @NewUserHa mentioned: [16/Jun/2019:15:25:04 +0800]

[NewUserHa]

I would like to PR this too. (though the other one still is not finished)...

what about obeying OS or python's timezone info? need import like pytz module for ease?

[asvetlov]

Don't follow what is the difference between OS and python TZ info?
Please no pytz if we can avoid the library (I think we cannot need if for local timezone-aware time).

[NewUserHa]

hmm.. maybe someone has different values for OS and python TZ info.
ok.

[NewUserHa]

#3860

[webknjaz]

Resolved by #3860.