DOMImplementation.hasFeature(feature, version) Return true if the feature identified by the pair of strings feature and version is implemented.

DOMImplementation.createDocumentType(qualifiedName, publicId, systemId) Return a new DocumentType object that encapsulates the given qualifiedName, publicId, and systemId strings, representing the information contained in an XML document type declaration.

DOMImplementation.createDocument(namespaceUri, qualifiedName, doctype) Return a new Document object (the root of the DOM), with a child Element object having the given namespaceUri and qualifiedName. The doctype must be a DocumentType object created by createDocumentType(), or None. In the Python DOM API, the first two arguments can also be None in order to indicate that no Element child is to be created.

exception xml.dom.DOMException Base exception class used for all specific DOM exceptions. This exception class cannot be directly instantiated.

DocumentType.systemId The system identifier for the external subset of the document type definition. This will be a URI as a string, or None.

DocumentType.publicId The public identifier for the external subset of the document type definition. This will be a string or None.

DocumentType.notations This is a NamedNodeMap giving the definitions of notations. For notation names defined more than once, only the first definition is provided (others are ignored as required by the XML recommendation). This may be None if the information is not provided by the parser, or if no notations are defined.

DocumentType.name The name of the root element as given in the DOCTYPE declaration, if present.

DocumentType.internalSubset A string giving the complete internal subset from the document. This does not include the brackets which enclose the subset. If the document has no internal subset, this should be None.

DocumentType.entities This is a NamedNodeMap giving the definitions of external entities. For entity names defined more than once, only the first definition is provided (others are ignored as required by the XML recommendation). This may be None if the information is not provided by the parser, or if no entities are defined.