PySide6.QtXml.QDomAttr

class QDomAttr

The QDomAttr class represents one attribute of a QDomElement . More…

Inheritance diagram of PySide6.QtXml.QDomAttr

Synopsis

Methods

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description

Warning

This section contains snippets that were automatically translated from C++ to Python and may contain errors.

For example, the following piece of XML produces an element with no children, but two attributes:

<link href="http://qt-project.org" color="red" />

You can access the attributes of an element with code like this:

e = QDomElement()
#...
a = e.attributeNode("href")
print(qPrintable(a.value()), '\n' # prints "http://qt-project.org")
a.setValue("http://qt-project.org/doc"); // change the node's attribute
a2 = e.attributeNode("href")
print(qPrintable(a2.value()), '\n' # prints "http://qt-project.org/doc")

This example also shows that changing an attribute received from an element changes the attribute of the element. If you do not want to change the value of the element’s attribute you must use cloneNode() to get an independent copy of the attribute.

QDomAttr can return the name() and value() of an attribute. An attribute’s value is set with setValue() . If specified() returns true the value was set with setValue() . The node this attribute is attached to (if any) is returned by ownerElement() .

For further information about the Document Object Model see http://www.w3.org/TR/REC-DOM-Level-1/ and http://www.w3.org/TR/DOM-Level-2-Core/ . For a more general introduction of the DOM implementation see the QDomDocument documentation.

__init__()

Constructs an empty attribute.

__init__(attr)
Parameters:

attr – QDomAttr

Constructs a copy of attr.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode() .

name()
Return type:

str

Returns the attribute’s name.

ownerElement()
Return type:

QDomElement

Returns the element node this attribute is attached to or a null node if this attribute is not attached to any element.

setValue(value)
Parameters:

value – str

Sets the attribute’s value to value.

See also

value()

specified()
Return type:

bool

Returns true if the attribute has been set by the user with setValue() . Returns false if the value hasn’t been specified or set.

See also

setValue()

value()
Return type:

str

Returns the value of the attribute or an empty string if the attribute has not been specified.