lxml: add namespace to input file

Question

I am parsing an xml file generated by an external program. I would then like to add custom annotations to this file, using my own namespace. My input looks as below:

Answer 1

Rather than dealing directly with the raw XML you could also look toward LibSBML, a library for manipulating SBML documents with language bindings for, among others, python. There you would use it like this:

>>> from libsbml import *
>>> doc = readSBML('Dropbox/SBML Models/BorisEJB.xml')
>>> species = doc.getModel().getSpecies('MAPK')
>>> species.appendAnnotation('')
0
>>> species.toSBML()
'\n  \n
 \n  \n'
>>>