Pretty XML string

pretty_xml.py

#!/usr/bin/env python
import sys
import xml.dom.minidom

data = sys.stdin.read()
xml = xml.dom.minidom.parseString(data)
print xml.toprettyxml(indent="  ", newl="")

Example.

$ ls
a.xml pretty_xml.py
$ cat a.xml
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<GetCervotSSByPID xmlns="http://tempuri.org/">
<PID>long</PID>
</GetCervotSSByPID>
</soap:Body>
</soap:Envelope>
$ cat a.xml | python pretty_xml.py
<?xml version="1.0" ?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">  
  <soap:Body>    
    <GetCervotSSByPID xmlns="http://tempuri.org/">      
      <PID>long</PID>      
    </GetCervotSSByPID>    
  </soap:Body>  
</soap:Envelope>