ah, that's why it doesn't work when the scenario is too small. Thanks for
the explanation, a very big help to understand my problem. I will look into
flush() function in Python.

Thanks,
Sasan

On Mon, Jun 29, 2020 at 12:19 PM Michael Behrisch <[email protected]> wrote:

> Hi Sasan,
> those buffers are usually not time triggered but are flushed to the
> output when they reached a certain amount of data.
> You may try to add some calls to flush() in the xml2csv script and also
> on the sumo side.
>
> Best regards,
> Michael
>
> Am 2020-06-29 10:50, schrieb Sasan Amini:
> > Hi Michael,
> >
> > It is actually buffering because the csv file is written when I close
> > the
> > simulation. However, the buffer time is infinite! even the column names
> > are
> > not written before the simulation (the connection with traci) is
> > closed.
> > The surprising fact is that the buffer time for a much larger scenario
> > with
> > many more links is about 0.07 seconds. Could it be anything else?
> >
> > Thanks,
> > Sasan
> >
> > On Sat, Jun 27, 2020 at 10:33 PM Michael Behrisch <[email protected]>
> > wrote:
> >
> >> Hi Sasan,
> >> is it still empty after the simulation finished / got closed? If not,
> >> it
> >> might be simply buffering.
> >>
> >> Best regards,
> >> Michael
> >>
> >> Am 24.06.20 um 11:19 schrieb Sasan Amini:
> >> > Hi,
> >> > I am using xml2csv.py to read the laneData during the simulation. It
> >> > works totally fine for a big scenario, but when I use the same
> >> > configuration on a very small scenario, the CSV file remains empty
> >> > until the traci connection is closed. Is there some hidden feature
> that
> >> > I am not seeing when using socket and xml2csv.py?
> >> >
> >> > Thanks,
> >> > Sasan
> >> >
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> >> >
> >>
> >>
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> >
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