Pretty print XML files with python xml.dom.minidom

ppxml.py

#!/usr/bin/env python
# ppxml - pretty print XML from stdin or argv files
#
# NB: if multiple XML files are specifies, concatenates the prettyprinted
# versions one after the other.
#
# Python 2 and Python 3 compatible AFAICT.
#
import sys
import xml.dom.minidom as md

#INDENT = '\t'
INDENT = ' ' * 4

def prettyprint(fh):
    print ('\n'.join(
        line for line in
        md.parse(fh).toprettyxml(indent=INDENT).split('\n')
        if line.strip()
    ))

if sys.argv[1:]:
    for path in sys.argv[1:]:
        with open(path, 'rb') as fh:
            prettyprint(fh)
else:
    prettyprint(sys.stdin)