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## Import
def importETree():
"""Import the best implementation of ElementTree, return a module object."""
etree_in_c = None
try: # Is it Python 2.5+ with C implemenation of ElementTree installed?
import xml.etree.cElementTree as etree_in_c
from xml.etree.ElementTree import Comment
except ImportError:
try: # Is it Python 2.5+ with Python implementation of ElementTree?
import xml.etree.ElementTree as etree
except ImportError:
try: # An earlier version of Python with cElementTree installed?
import cElementTree as etree_in_c
from elementtree.ElementTree import Comment
except ImportError:
try: # An earlier version of Python with Python ElementTree?
import elementtree.ElementTree as etree
except ImportError:
raise ImportError("Failed to import ElementTree")
if etree_in_c:
if etree_in_c.VERSION < "1.0.5":
raise RuntimeError("cElementTree version 1.0.5 or higher is required.")
# Third party serializers (including ours) test with non-c Comment
etree_in_c.test_comment = Comment
return etree_in_c
elif etree.VERSION < "1.1":
raise RuntimeError("ElementTree version 1.1 or higher is required")
else:
return etree
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