The variable tag is a list of strings. The method getElementsByTagName
takes a single string as its first parameter. Since a list cannot
appear as a tag name, the second call to getElementsByTagName returns an
empty list.
body = dom.getElementsByTagName('body')[0]
for route in body.getElementsByTagName('route'):
print route.getAttribute('tag')
Peter
On 2/3/2010 9:04 PM, kimmyaf wrote:
Hello, I am not real sure if my question belongs here or not, but this is
best place I could find.
I am a python beginner and trying to teach myself how to parse some XML with
minidom.
This is the code excerpt I am struggling with....
********************************************************
dom = minidom.parseString(xml_response)
handler.close()
route_list = []
tag = ['route']
tmp_route=[]
for route in dom.getElementsByTagName('body'):
print 'in'
tmp_route[route] =
dom.getElementsByTagName(tag)[0].getAttribute('tag')
route_list.append(tmp_route)
*******************************************************************
Here is the XML I am getting back when I call...
'<?xml version="1.0" encoding="utf-8" ?> \r\n<body copyright="All data
copyright MBTA 2010.">\r\n<route tag="39" title="39"/>\r\n<route tag="111"
title="111"/>\r\n<route tag="114" title="114"/>\r\n<route tag="116"
title="116"/>\r\n<route tag="117" title="117"/>\r\n</body>\r\n'
See this formatted better by pasting this URL =>
http://webservices.nextbus.com/service/publicXMLFeed?command=routeList&a=mbta
I am taking the following error:
File "C:/Users/Kim/Grad School/Python/bus python.py", line 54, in<module>
get_available_routes()
File "C:/Users/Kim/Grad School/Python/bus python.py", line 43, in
get_available_routes
tmp_route[route] = dom.getElementsByTagName(tag)[0].getAttribute('tag')
IndexError: list index out of range
I'm sure there is something obvious that I am doing wrong. All I want to do
is grab all of the<route tag> values and put them into a list. Kind of new
to parsing XML! I'm working off an example but the XML in the example code
is a lot more in depth so can't really relate it to mine. I also would like
any reference anyone has about how to parse with minidom!!
Help! Thank you! %-|
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