"""W3C Document Object Model implementation for Python.

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The Python mapping of the Document Object Model is documented in the

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Python Library Reference in the section on the xml.dom package.

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This package contains the following modules:

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minidom -- A simple implementation of the Level 1 DOM with namespace

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support added (based on the Level 2 specification) and other

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minor Level 2 functionality.

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pulldom -- DOM builder supporting on-demand tree-building for selected

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subtrees of the document.

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"""

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class Node:

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"""Class giving the NodeType constants."""

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__slots__ = ()

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# DOM implementations may use this as a base class for their own

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# Node implementations. If they don't, the constants defined here

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# should still be used as the canonical definitions as they match

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# the values given in the W3C recommendation. Client code can

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# safely refer to these values in all tests of Node.nodeType

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# values.

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ELEMENT_NODE = 1

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ATTRIBUTE_NODE = 2

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TEXT_NODE = 3

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CDATA_SECTION_NODE = 4

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ENTITY_REFERENCE_NODE = 5

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ENTITY_NODE = 6

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PROCESSING_INSTRUCTION_NODE = 7

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COMMENT_NODE = 8

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DOCUMENT_NODE = 9

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DOCUMENT_TYPE_NODE = 10

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DOCUMENT_FRAGMENT_NODE = 11

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NOTATION_NODE = 12

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#ExceptionCode

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INDEX_SIZE_ERR = 1

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DOMSTRING_SIZE_ERR = 2

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HIERARCHY_REQUEST_ERR = 3

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WRONG_DOCUMENT_ERR = 4

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INVALID_CHARACTER_ERR = 5

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NO_DATA_ALLOWED_ERR = 6

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NO_MODIFICATION_ALLOWED_ERR = 7

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NOT_FOUND_ERR = 8

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NOT_SUPPORTED_ERR = 9

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INUSE_ATTRIBUTE_ERR = 10

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INVALID_STATE_ERR = 11

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SYNTAX_ERR = 12

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INVALID_MODIFICATION_ERR = 13

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NAMESPACE_ERR = 14

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INVALID_ACCESS_ERR = 15

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VALIDATION_ERR = 16

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class DOMException(Exception):

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"""Abstract base class for DOM exceptions.

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Exceptions with specific codes are specializations of this class."""

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def __init__(self, *args, **kw):

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if self.__class__ is DOMException:

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raise RuntimeError(

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"DOMException should not be instantiated directly")

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Exception.__init__(self, *args, **kw)

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def _get_code(self):

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return self.code

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class IndexSizeErr(DOMException):

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code = INDEX_SIZE_ERR

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class DomstringSizeErr(DOMException):

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code = DOMSTRING_SIZE_ERR

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class HierarchyRequestErr(DOMException):

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code = HIERARCHY_REQUEST_ERR

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class WrongDocumentErr(DOMException):

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code = WRONG_DOCUMENT_ERR

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class InvalidCharacterErr(DOMException):

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code = INVALID_CHARACTER_ERR

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class NoDataAllowedErr(DOMException):

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code = NO_DATA_ALLOWED_ERR

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class NoModificationAllowedErr(DOMException):

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code = NO_MODIFICATION_ALLOWED_ERR

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class NotFoundErr(DOMException):

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code = NOT_FOUND_ERR

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class NotSupportedErr(DOMException):

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code = NOT_SUPPORTED_ERR

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class InuseAttributeErr(DOMException):

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code = INUSE_ATTRIBUTE_ERR

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class InvalidStateErr(DOMException):

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code = INVALID_STATE_ERR

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class SyntaxErr(DOMException):

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code = SYNTAX_ERR

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class InvalidModificationErr(DOMException):

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code = INVALID_MODIFICATION_ERR

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class NamespaceErr(DOMException):

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code = NAMESPACE_ERR

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class InvalidAccessErr(DOMException):

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code = INVALID_ACCESS_ERR

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class ValidationErr(DOMException):

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code = VALIDATION_ERR

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class UserDataHandler:

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"""Class giving the operation constants for UserDataHandler.handle()."""

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# Based on DOM Level 3 (WD 9 April 2002)

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NODE_CLONED = 1

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NODE_IMPORTED = 2

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NODE_DELETED = 3

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NODE_RENAMED = 4

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XML_NAMESPACE = "http://www.w3.org/XML/1998/namespace"

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XMLNS_NAMESPACE = "http://www.w3.org/2000/xmlns/"

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XHTML_NAMESPACE = "http://www.w3.org/1999/xhtml"

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EMPTY_NAMESPACE = None

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EMPTY_PREFIX = None

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from .domreg import getDOMImplementation, registerDOMImplementation

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