lxml.html.Classes

class documentation

class Classes(MutableSet):

Provides access to an element's class attribute as a set-like collection. Usage:

>>> el = fromstring('<p class="hidden large">Text</p>')
>>> classes = el.classes  # or: classes = Classes(el.attrib)
>>> classes |= ['block', 'paragraph']
>>> el.get('class')
'hidden large block paragraph'
>>> classes.toggle('hidden')
False
>>> el.get('class')
'large block paragraph'
>>> classes -= ('some', 'classes', 'block')
>>> el.get('class')
'large paragraph'

Method	`__contains__`	Undocumented
Method	`__init__`	Undocumented
Method	`__iter__`	Undocumented
Method	`__len__`	Undocumented
Method	`add`	Add a class.
Method	`discard`	Remove a class if it is currently present.
Method	`remove`	Remove a class; it must currently be present.
Method	`toggle`	Add a class name if it isn't there yet, or remove it if it exists.
Method	`update`	Add all names from 'values'.
Instance Variable	`_attributes`	Undocumented
Instance Variable	`_get_class_value`	Undocumented

def __contains__(self, name):

Undocumented

def __init__(self, attributes):

Undocumented

def __iter__(self):

Undocumented

def __len__(self):

Undocumented

def add(self, value):

Add a class.

This has no effect if the class is already present.

def discard(self, value):

Remove a class if it is currently present.

If the class is not present, do nothing.

def remove(self, value):

Remove a class; it must currently be present.

If the class is not present, raise a KeyError.

def toggle(self, value):

Add a class name if it isn't there yet, or remove it if it exists.

Returns true if the class was added (and is now enabled) and false if it was removed (and is now disabled).

def update(self, values):

Add all names from 'values'.

_attributes =

Undocumented

_get_class_value =

Undocumented