It seems that Python's internal XML parser is good enough to do the job.
@@ -203,7 +203,6 @@ setup(
install_requires=[
'ruffus>=2.6.3',
'Pillow>=2.4.0',
'lxml>=3.3.3',
'reportlab>=3.1.44',
'PyPDF2>=1.25.1'
],
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