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'''XML lib compatibility layer for the Bcfg2 client'''
# library will use lxml, then builtin xml.etree, then ElementTree
try:
from lxml.etree import Element, SubElement, XML, tostring
from lxml.etree import XMLSyntaxError as ParseError
driver = 'lxml'
except ImportError:
# lxml not available
from xml.parsers.expat import ExpatError as ParseError
try:
import xml.etree.ElementTree
Element = xml.etree.ElementTree.Element
SubElement = xml.etree.ElementTree.SubElement
XML = xml.etree.ElementTree.XML
def tostring(e, encoding=None, xml_declaration=None):
return xml.etree.ElementTree.tostring(e, encoding=encoding)
driver = 'etree-py'
except ImportError:
try:
from elementtree.ElementTree import Element, SubElement, XML, tostring
driver = 'etree'
import elementtree.ElementTree
Element = elementtree.ElementTree.Element
SubElement = elementtree.ElementTree.SubElement
XML = elementtree.ElementTree.XML
def tostring(e, encoding=None, xml_declaration=None):
return elementtree.ElementTree.tostring(e)
except ImportError:
print("Failed to load lxml, xml.etree and elementtree.ElementTree")
print("Cannot continue")
raise SystemExit(1)
len([Element, SubElement, XML, tostring, ParseError])
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