The xml.dom contains the following functions:
- Register the factory function with the name name. The factory
function should return an object which implements the DOMImplementation
interface. The factory function can return the same object every time, or a new one for
each call, as appropriate for the specific implementation (e.g. if that implementation
supports some customization).
- Return a suitable DOM implementation. The name is either well-known, the
module name of a DOM implementation, or
None. If it is not
imports the corresponding module and returns a DOMImplementation
object if the import succeeds. If no name is given, and if the environment variable PYTHON_DOM is set, this variable is used to find the
If name is not given, this examines the available implementations to find one with the
required feature set. If no implementation can be found, raise an ImportError.
The features list must be a sequence of
pairs which are passed to the hasFeature() method on available DOMImplementation objects.
Some convenience constants are also provided:
- The value used to indicate that no namespace is associated with a node in the DOM. This
is typically found as the namespaceURI of a node, or used as the namespaceURI
parameter to a namespaces-specific method. New in version 2.2.
- The namespace URI associated with the reserved prefix
xml, as defined by Namespaces
in XML (section 4). New in version 2.2.
- The namespace URI for namespace declarations, as defined by Document
Object Model (DOM) Level 2 Core Specification (section 1.1.8). New in version 2.2.
- The URI of the XHTML namespace as defined by XHTML 1.0: The
Extensible HyperText Markup Language (section 3.1.1). New
in version 2.2.
In addition, xml.dom contains a base Node
class and the DOM exception classes. The Node class provided by this
module does not implement any of the methods or attributes defined by the DOM specification;
concrete DOM implementations must provide those. The Node class
provided as part of this module does provide the constants used for the nodeType
attribute on concrete Node objects; they are located within the class
rather than at the module level to conform with the DOM specifications.