lxml - SubElement dump root doesn't dump like Element dump does
Peter Otten
__peter__ at web.de
Mon Jun 20 02:19:00 EDT 2016
Sayth Renshaw wrote:
> Afternoon
>
> Wondering has anyone much experience with lxml specifically objectify?
>
> When I pick up a file with lxml and use objectify dumping root works as
> expected actually better its quite nice. This is how i do it, file
> handling part left out for brevity.
>
> def getsMeet(file_list):
> for filename in sorted(file_list):
> filename=my_dir + filename
> yield filename
>
> def parseXML():
> """
> """
> for file in getsMeet(file_list):
> with open(file) as f:
> xml = f.read()
>
> root = objectify.fromstring(xml)
> print(root.tag)
> print(objectify.dump(root))
> race = objectify.SubElement(root,"race")
> print(objectify.dump(race))
>
>
> parseXML()
>
> So the first call to print(objectify.dump(root)) gives as a sample.
>
> meeting = None [ObjectifiedElement]
> * id = '42977'
> * barriertrial = '0'
> * venue = 'Rosehill Gardens'
> * date = '2016-05-21T00:00:00'
> * gearchanges = '-1'
> * stewardsreport = '-1'
> * gearlist = '-1'
> * racebook = '0'
> * postracestewards = '0'
> * meetingtype = 'TAB'
> * rail = 'Timing - Electronic : Rail - +6m'
> * weather = 'Fine '
> * trackcondition = 'Good 3 '
> * nomsdeadline = '2016-05-16T11:00:00'
> * weightsdeadline = '2016-05-17T16:00:00'
> * acceptdeadline = '2016-05-18T09:00:00'
> * jockeydeadline = '2016-05-18T12:00:00'
> club = '' [StringElement]
> * abbrevname = 'Australian Turf Club'
> * code = '56398'
> * associationclass = '1'
> * website = 'http://'
> race = None [ObjectifiedElement]
> * id = '215411'
> * number = '1'
> * nomnumber = '9'
>
> Then I am confused when I want to repeat this but only for the subelement
> race I get a return but not as expected.
>
> This is my return
> race = '' [StringElement]
>
> so why do i not get all the elements of race as I do when i dump the root?
Because race is a new SubElement that you just created:
>>> help(lxml.objectify.SubElement)
Help on built-in function SubElement in module lxml.etree:
SubElement(...)
SubElement(_parent, _tag, attrib=None, nsmap=None, **_extra)
Subelement factory. This function creates an element instance, and
appends it to an existing element.
>>>
Existing subelements can be accessed as attributes. I'd say that's the very
point of the lxml.objectify library ;)
For example:
>>> root =
lxml.objectify.fromstring("<a><b><c>one</c><d>two</d></b><b>second
b</b></a>")
>>> print(lxml.objectify.dump(root.b))
b = None [ObjectifiedElement]
c = 'one' [StringElement]
d = 'two' [StringElement]
>>> print(lxml.objectify.dump(root.b[0]))
b = None [ObjectifiedElement]
c = 'one' [StringElement]
d = 'two' [StringElement]
>>> print(lxml.objectify.dump(root.b[1]))
b = 'second b' [StringElement]
> Cheers
>
> Sayth
> PS I am referring to this documentation
> http://lxml.de/objectify.html#element-access-through-object-attributes
Read that again.
More information about the Python-list
mailing list