Write returned XML to a .xml file

[jld730]

In the example below, how would you write the in-memory xmldoc to a text file? In my real situation, I send a string to a web service (code 2 below) which returns XML/KML that I want to save to a local file.

from: [HTML]http://www.faqs.org/docs/diveintopython/kgp_parse.html[/HTML]

>>> from xml.dom import minidom                                          
>>> xmldoc = minidom.parse('~/diveintopython/common/py/kgp/binary.xml')  
>>> xmldoc                                                               
<xml.dom.minidom.Document instance at 010BE87C>
>>> print xmldoc.toxml()                                                 
<?xml version="1.0" ?>
<grammar>
<ref id="bit">
  <p>0</p>
  <p>1</p>
</ref>
<ref id="byte">
  <p><xref id="bit"/><xref id="bit"/><xref id="bit"/><xref id="bit"/>\
<xref id="bit"/><xref id="bit"/><xref id="bit"/><xref id="bit"/></p>
</ref>
</grammar>

2

# from http://svn.python.org/projects/python/branches/release25-maint/Doc/howto/urllib2.rst

import urllib, urllib2, arcgisscripting
from xml.dom import minidom

user_address = '8615 Westwood Center Drive, Vienna, VA, 22182'
url = 'http://xxx.yyy.zzz' #geocoding servlet url - the one I use is internal
values = {'address': user_address} 

data = urllib.urlencode(values)
req = urllib2.Request(url, data)
response = urllib2.urlopen(req)
xmlResults = response.read()

xmldoc = minidom.parseString(xmlResults)
##places = xmldoc.getElementsByTagName('Placemark')
##
##nameTag = places[0].getElementsByTagName('name')
##print nameTag[0].firstChild.wholeText
##
##descriptionTag = places[0].getElementsByTagName('description')
##print descriptionTag[0].firstChild.wholeText
##
##coordinatesTag = places[0].getElementsByTagName('coordinates')
##print coordinatesTag[0].firstChild.wholeText
##
##gp.SetParameterAsText(1,xmlResults)

print xmldoc.toxml()

Thanks!

[Laharl]

[CODE=python]
f = open('filename' , 'wb') #Can be 'w'
f.write(xmldoc. toxml())
[/CODE]

[jld730]

[CODE=python]
#Assumes dom is an XML Document object
f = open('filename' , 'wb') #Can be 'w'
f.write(dom.tox ml())
[/CODE]

I'm not sure I follow this. So with my code2, i tack this

f = open('filename', 'wb')
f.write(xmldoc.toxml())

onto the end. It executes, but where is my file saved, what is its name? I'm new to this still, but 'w', 'wb' is not familiar to me at all.

Thanks for your response.

[Laharl]

Filename there is a string representation of the file's name where you want the XML to be saved. w vs wb is the mode in which the file is opened. w means write-mode, wb means binary-write mode. If it's written in wb, it should be read with rb.

Doing it the way you did would create a file in the same directory as the Python script called filename. That was partially my fault for putting quotes around that.

[jld730]

I'm not sure I follow this. So with my code2, i tack this

f = open('filename', 'wb')
f.write(xmldoc.toxml())

onto the end. It executes, but where is my file saved, what is its name? I'm new to this still, but 'w', 'wb' is not familiar to me at all.

Thanks for your response.

Sorry, I guess that was fairly stupid of me (forgive me -- boss has had me way over my head these days -- brain is malfunctioning) . I did this code and it works. Still not sure what 'wb' means.

kmlTextFile = "C:\\Temp\\scriptTEST2.kml"
f = open(kmlTextFile, "w")
f.write(xmldoc.toxml())

[jld730]

Filename there is a string representation of the file's name where you want the XML to be saved. w vs wb is the mode in which the file is opened. w means write-mode, wb means binary-write mode. If it's written in wb, it should be read with wb.

Doing it the way you did would create a file in the same directory as the Python script called filename. That was partially my fault for putting quotes around that.

Ahh, OK, thanks for the explanation!!

[jlm699]

Just to fix a minor typo by laharl... when writing with 'wb' (write-binary) you will READ with 'rb' (read-binary).

[Laharl]

Typo...what typo? I don't see any typo...=P