I am currently working on a project using OpenStreetMap XML documents. Part of the project is to verify some of the data and it's consistency. I am fairly new with Python and with working with XML files so I have really no idea where to start.
Here is a snippet of my XML document:
<way id="11005330" version="2" timestamp="2013-02-05T20:56:45Z" changeset="14926577" uid="451693" user="bot-mode">
<nd ref="98006629"/>
<nd ref="98006630"/>
<nd ref="98006631"/>
<tag k="highway" v="residential"/>
<tag k="name" v="Kiwi Court"/>
<tag k="tiger:cfcc" v="A41"/>
<tag k="tiger:county" v="Lake, FL"/>
<tag k="tiger:name_base" v="Kiwi"/>
<tag k="tiger:name_type" v="Ct"/>
<tag k="tiger:reviewed" v="no"/>
<tag k="tiger:zip_left" v="34714"/>
<tag k="tiger:zip_right" v="34714"/>
What I want to do now is take the:
<tag k="tiger:name_base" v="Kiwi"/>
<tag k="tiger:name_type" v="Ct"/>
and combine them into one new tag:
<tag k="addr:street" v="Kiwi Ct"/>
the other thing is that not all of these have both the name_base and name_type. so for those I just want to create the addr:street tag.
This is an extremely large file so it would have to look through each one and create it. After it creates the new tag I will then need to go ahead and remove the element.
I am using the:import xml.etree.cElementTree as ET
EDIT
I was able to fix part of my problem
root = tree.getroot()
for way in root.findall(".//way"):
kbool = False
tbool = False
for key in way.iterfind(".//tag"):
if key.attrib['k'] == "tiger:name_base":
kbool = True
# print(key.attrib['v'])
base = key.attrib['v']
if key.attrib['k'] == "tiger:name_type":
tbool = True
ttype = key.attrib['v']
if kbool == True and tbool == True:
ET.SubElement(way, 'tag k="addr:street" v="{} {}"'.format(base, ttype))
elif kbool == True and tbool == False:
ET.SubElement(way, 'tag k="addr:street" v="{}"'.format(base))
tree.write('maps')
The issue I'm having now is that it is writing the address attribut even for ways that do not have the tiger:name_base key.
Using ElementTree.
XML = """<root>
<way id="11005330" version="2" timestamp="2013-02-05T20:56:45Z" changeset="14926577" uid="451693" user="bot-mode">
<nd ref="98006629"/>
<nd ref="98006630"/>
<nd ref="98006631"/>
<tag k="highway" v="residential"/>
<tag k="name" v="Kiwi Court"/>
<tag k="tiger:cfcc" v="A41"/>
<tag k="tiger:county" v="Lake, FL"/>
<tag k="tiger:name_base" v="Kiwi"/>
<tag k="tiger:name_type" v="Ct"/>
<tag k="tiger:reviewed" v="no"/>
<tag k="tiger:zip_left" v="34714"/>
<tag k="tiger:zip_right" v="34714"/>
</way>
</root>"""
Demo:
import xml.etree.ElementTree as ET
tree = ET.parse(filename)
doc = tree.getroot()
for way in doc.findall(".//way"): #Find all way tags
name_base = way.find('.//tag[@k="tiger:name_base"]').get("v") #Get tiger:name_base attr
way.remove(way.find('.//tag[@k="tiger:name_base"]')) #Remove Tag
name_type = way.find('.//tag[@k="tiger:name_type"]').get("v") #Get tiger:name_type attr
way.remove(way.find('.//tag[@k="tiger:name_type"]')) #Remove Tag
newNode = ET.SubElement(way, '''tag k="addr:street" v="{} {}"'''.format(name_base, name_type)) #Add New Tag
tree.write(r"C:\Users\Rakesh\Desktop\testFiles\A2.xml") #Write to file
Output:
<root>
<way changeset="14926577" id="11005330" timestamp="2013-02-05T20:56:45Z" uid="451693" user="bot-mode" version="2">
<nd ref="98006629" />
<nd ref="98006630" />
<nd ref="98006631" />
<tag k="highway" v="residential" />
<tag k="name" v="Kiwi Court" />
<tag k="tiger:cfcc" v="A41" />
<tag k="tiger:county" v="Lake, FL" />
<tag k="tiger:reviewed" v="no" />
<tag k="tiger:zip_left" v="34714" />
<tag k="tiger:zip_right" v="34714" />
<tag k="addr:street" v="Kiwi Ct" /></way>
</root>