## ProcessingInstruction class The class represents a "processing instruction", used in XML as a way to keep processor-specific information in the text of the document. **Inheritance:** [ProcessingInstruction](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction) → [CharacterData](/finance/python-net/aspose.finance.xbrl.dom/characterdata) → [Node](/finance/python-net/aspose.finance.xbrl.dom/node) The ProcessingInstruction type exposes the following members: ### Properties | Property | Description | | :- | :- | | [node_type](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/node_type) | Gets the node type. | | [parent_node](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/parent_node) | Gets the parent node. | | [base_uri](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/base_uri) | Gets the absolute base URI of this node or null if the implementation wasn't able to obtain an absolute URI. | | [owner_document](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/owner_document) | Gets the document object associated with this node. | | [child_nodes](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/child_nodes) | Gets the child nodes. | | [node_name](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/node_name) | Gets the name of this processing instruction. | | [node_value](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/node_value) | Gets or sets the value of this node, depending on its type. | | [text_content](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/text_content) | Gets or sets the the text content of this node and its descendants. | | [local_name](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/local_name) | Gets the local part of the qualified name of this node. | | [prefix](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/prefix) | Gets or sets the namespace prefix of this node. | | [namespace_uri](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/namespace_uri) | Gets the namespace URI of this node. | | [has_child_nodes](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/has_child_nodes) | Gets whether this node has any children. | | [previous_sibling](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/previous_sibling) | Gets the node immediately preceding this node. If there is no such node, this returns null. | | [next_sibling](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/next_sibling) | Gets the node immediately following this node. If there is no such node, this returns null. | | [first_child](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/first_child) | Gets the first child of this node. If there is no such node, this returns null. | | [last_child](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/last_child) | Gets the last child of this node. If there is no such node, this returns null. | | [COMMENT_NODE](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/COMMENT_NODE) | | | [DOCUMENT_NODE](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/DOCUMENT_NODE) | | | [DOCUMENT_TYPE_NODE](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/DOCUMENT_TYPE_NODE) | | | [ELEMENT_NODE](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/ELEMENT_NODE) | | | [PROCESSING_INSTRUCTION_NODE](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/PROCESSING_INSTRUCTION_NODE) | | | [TEXT_NODE](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/TEXT_NODE) | | | [length](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/length) | Gets the number of 16-bit units that are available through data. This may have the value zero, i.e., CharacterData nodes may be empty. | | [data](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/data) | Gets or sets the character data of the node that implements this interface. | ### Methods | Method | Description | | :- | :- | | [append_child(node)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/append_child/#Node) | Adds the node newChild to the end of the list of children of this node. | | [remove_child(node)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/remove_child/#Node) | Removes the child node indicated by old child from the list of children. | | [replace_child(node, child)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/replace_child/#Node-Node) | Replaces the child node old child with new child in the list of children, and returns the old child node. | | [substring(offset, count)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/substring/#int-int) | Extracts a range of data from the node. | | [append_data(data)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/append_data/#str) | Appends the string to the end of the character data of the node. | | [insert_data(offset, data)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/insert_data/#int-str) | Inserts a string at the specified offset. | | [delete_data(offset, count)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/delete_data/#int-int) | Removes a range of content from the node. | | [replace_data(offset, count, data)](/finance/python-net/aspose.finance.xbrl.dom/processinginstruction/replace_data/#int-int-str) | Replaces the characters starting at the specified offset with the specified string. | ### See Also * module [aspose.finance.xbrl.dom](../) * class [CharacterData](/finance/python-net/aspose.finance.xbrl.dom/characterdata)