Re: lxml - SubElement dump root doesn't dump like Element dump does
On Monday, 20 June 2016 16:19:31 UTC+10, Peter Otten wrote:
> 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("onetwosecond
> b")
> >>> 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]
>
this actually seems quite powerful, I don't fully understand it yet though it
seems I have just got an XML doc as a list of dicts so I can just slice and
select as normal python.
thanks for helping
Sayth
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Re: lxml - SubElement dump root doesn't dump like Element dump does
Thanks your way makes more sense indeed. In the example they create and access I think I just got lost in their example. Sayth -- https://mail.python.org/mailman/listinfo/python-list
Re: lxml - SubElement dump root doesn't dump like Element dump does
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("onetwosecond
b")
>>> 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.
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lxml - SubElement dump root doesn't dump like Element dump does
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? Cheers Sayth PS I am referring to this documentation http://lxml.de/objectify.html#element-access-through-object-attributes -- https://mail.python.org/mailman/listinfo/python-list
