Re: [sumo-user] Error converting xml2csv

[Lukas Ambuehl <kitatsuab@xxxxxxxxx>]

Hi,

when you look at the last line, it tells you “unclosed token”. This indicates that in the xml that you’re trying to parse, you’re missing an ending tag.

I am guessing you’re parsing a netstate-dump, which hasn’t finished the full simulation. 

To fix this: 

1. open the xml file (with a text editor)

2. check that ALL the tags that were opened somewhere have an ending tag further down. (e.g. for “netstate”, there should be a <netstate> somewhere in the beginning, and a </netstate> somewhere near the end; watch out for the nesting of the xml tags (check this: https://sumo.dlr.de/wiki/Simulation/Output/RawDump)).

3. add ending tags where necessary, save the xml in the editor.

4. run xml2csv.py again on the corrected xml.

I am guessing in your case, you’re just missing the last one.

Cheers,

Lukas

On 25 Apr 2019, at 06:34, aditya medury <amedury@xxxxxxxxx> wrote:

Hi,

I am trying to convert the xml files obtained from netstate-dump and fcd-output to csv using the python script "xml2csv.py" (https://sumo.dlr.de/wiki/Tools/Xml#xml2csv.py). However, I get an error for both files which goes as follows:

------

 File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/expatreader.py", line 217, in feed

    self._parser.Parse(data, isFinal)

xml.parsers.expat.ExpatError: unclosed token: line 938516, column 8

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "/usr/share/sumo/tools/xml/xml2csv.py", line 275, in <module>

    main()

  File "/usr/share/sumo/tools/xml/xml2csv.py", line 262, in main

    attrFinder = AttrFinder(options.xsd, options.source, options.split)

  File "/usr/share/sumo/tools/xml/xml2csv.py", line 82, in __init__

    xml.sax.parse(source, self)

  File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/__init__.py", line 33, in parse

    parser.parse(source)

  File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/expatreader.py", line 111, in parse

    xmlreader.IncrementalParser.parse(self, source)

  File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/xmlreader.py", line 127, in parse

    self.close()

  File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/expatreader.py", line 240, in close

    self.feed("", isFinal = 1)

  File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/expatreader.py", line 221, in feed

    self._err_handler.fatalError(exc)

  File "/home/amedury/anaconda3/envs/tracking/lib/python3.6/xml/sax/handler.py", line 38, in fatalError

    raise exception

xml.sax._exceptions.SAXParseException: netstate_dump.xml:938516:8: unclosed token

---------

I was wondering if someone can suggest potential debugging options and/or alternatives to store the output from SUMO as csv directly. The wiki mentions that the script can listen in to incoming connections and facilitate writing files to csv directly, but I was not able to understand the instructions very well.

Any help would be much appreciated.

Thanks!

Aditya

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