"""\
@file fastest_elementtree.py
@brief Concealing some gnarly import logic in here.  This should export the interface of elementtree.

$LicenseInfo:firstyear=2008&license=mit$

Copyright (c) 2008-2009, Linden Research, Inc.

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"""

# The parsing exception raised by the underlying library depends
# on the ElementTree implementation we're using, so we provide an
# alias here.
#
# Use ElementTreeError as the exception type for catching parsing
# errors.


# Using cElementTree might cause some unforeseen problems, so here's a
# convenient off switch.
use_celementree = True

try:
    if not use_celementree:
        raise ImportError()
    # Python 2.3 and 2.4.
    from cElementTree import *
    ElementTreeError = SyntaxError
except ImportError:
    try:
        if not use_celementree:
            raise ImportError()
        # Python 2.5 and above.
        from xml.etree.cElementTree import *
        ElementTreeError = SyntaxError
    except ImportError:
        # Pure Python code.
        try:
            # Python 2.3 and 2.4.
            from elementtree.ElementTree import *
        except ImportError:
            # Python 2.5 and above.
            from xml.etree.ElementTree import *

        # The pure Python ElementTree module uses Expat for parsing.
        from xml.parsers.expat import ExpatError as ElementTreeError
