myxml.py

#!/usr/bin/env python

# def xml(....)
#  

# print xml('foo') #  => <foo></foo>
# print xml('foo', 'bar')  # => <foo>bar</foo>

# print xml('p', xml('i', xml('b', 'Hello')))
# # # #     # => <p><i><b>Hello</b></i></p>

# print xml('foo', 'bar', a=1) #  => <foo a="1">bar</foo>
# print xml('foo', 'bar', a=1, b=2) #  => <foo a="1" b="2">bar</foo>