Hi Dane,
I downloaded the archive at https://github.com/mapnik/Cascadenik unpacked it
and followed the install instructions:
> python setup.py install
Maybe I got something wrong?
Christoph
Am 03.11.2010 um 22:42 schrieb Dane Springmeyer:
> Hmm, looks like I guessed wrong which Cascadenik version you are running.
>
> How did you download and install Cascadenik?
>
> Dane
>
> On Nov 3, 2010, at 12:21 PM, Christoph Lingg | komoot wrote:
>
>> Hi Dane,
>>
>> thank you for your answer! I installed lxml and i can successfully import
>> the bindings in python:
>>> import lxml.etree
>>
>> I changed the corresponding code in cascadenik-compile.py:
>>> #try:
>>> # import xml.etree.ElementTree as ElementTree
>>> # from xml.etree.ElementTree import Element
>>> #except ImportError:
>>> try:
>>> import lxml.etree as ElementTree
>>> from lxml.etree import Element
>>> except ImportError:
>>> import elementtree.ElementTree as ElementTree
>>> from elementtree.ElementTree import Element
>>
>> But still, I get a different error:
>>> cascadenik-compile.py example.mml > test.xml
>>> Traceback (most recent call last):
>>> File "/usr/local/bin/cascadenik-compile.py", line 114, in <module>
>>> sys.exit(main(layersfile, **options.__dict__))
>>> File "/usr/local/bin/cascadenik-compile.py", line 46, in main
>>> doc.write(f)
>>> AttributeError: 'lxml.etree._Element' object has no attribute 'write'
>>
>>
>> The corresponding code looks like:
>>> if kwargs.get('pretty'):
>>> doc = ElementTree.fromstring(open(filename, 'rb').read())
>>> print doc
>>> cascadenik._compile.indent(doc)
>>> f = open(filename, 'wb')
>>> doc.write(f)
>>> f.close()
>>
>> I have never worked with lxml yet, but it seems weird: the _Element Class
>> doesn't has a write function, see
>>> http://codespeak.net/lxml/api/lxml.etree._Element-class.html
>>
>> But the ElementTree does it, and I think this was in mind.
>>> http://codespeak.net/lxml/api/lxml.etree._ElementTree-class.html
>>
>> Well, the pretty option didn't seem to be important, I skipped the if block
>> and now compile.py works without errors. I assume this change doesn't affect
>> the result, I will have to check it!
>>
>> Thanks Dane for your help, If i can contribute anything to fix this bug, let
>> me know!
>>
>> Bye,
>> Christoph
>>
>> Am 03.11.2010 um 00:21 schrieb Dane Springmeyer:
>>
>>> Hi Christoph,
>>>
>>> Yes, sorry this is a bug, fixed in the Cascadenik development version (but
>>> I don't recommed using the dev version yet).
>>>
>>> Basically it looks like you are using the latest release via pypi and in
>>> that version there are several imports at the top of cascadenik/compile.py
>>> which attempt to allow fallbacks to different xml parsers that implement an
>>> etree interface.
>>>
>>> lxml (python bindings to libxml2) is preferred and it turns out its
>>> interface is slightly different and while it has doc.write() others may not.
>>>
>>> So, the easiest way to fix this issues is to install lxml. On ubuntu I
>>> think that is:
>>>
>>> sudo apt-get install python-lxml
>>>
>>> Dane
>>>
>>>
>>> On Nov 2, 2010, at 2:10 PM, Christoph Lingg | komoot wrote:
>>>
>>>> Hi list,
>>>>
>>>> I recently installed cascadenik on a new server and encountered an error
>>>> while compiling my mml file. First I thought this might be due a wrong mml
>>>> file, but even the example given by cascadenik doesn't work:
>>>>
>>>>> christ...@server:~/mapnik-Cascadenik-796acf2$ cascadenik-compile.py
>>>>> example.mml > test.xml
>>>>> Traceback (most recent call last):
>>>>> File "/usr/local/bin/cascadenik-compile.py", line 114, in <module>
>>>>> sys.exit(main(layersfile, **options.__dict__))
>>>>> File "/usr/local/bin/cascadenik-compile.py", line 46, in main
>>>>> doc.write(f)
>>>>> AttributeError: _ElementInterface instance has no attribute 'write'
>>>>
>>>>
>>>> I am quite lost and would be very happy if somebody knows more about this
>>>> issue!
>>>>
>>>> Thanks a lot in advance!
>>>> Christoph
>>>>
>>>> PS:
>>>> I am running Ubuntu 10.10 and the content of test.xml looks like:
>>>>> cat test.xml
>>>>> <Element Map at 26c7fc8>
>>>>
>>>> _______________________________________________
>>>> Mapnik-users mailing list
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>>>> https://lists.berlios.de/mailman/listinfo/mapnik-users
>>
>
Christoph Lingg
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