jinja2.runtime.ChainableUndefined

class documentation

class ChainableUndefined(Undefined):

An undefined that is chainable, where both __getattr__ and __getitem__ return itself rather than raising an UndefinedError.

>>> foo = ChainableUndefined(name='foo')
>>> str(foo.bar['baz'])
''
>>> foo.bar['baz'] + 42
Traceback (most recent call last):
  ...
jinja2.exceptions.UndefinedError: 'foo' is undefined

New in version 2.11.0.

Method	`__getattr__`	Undocumented
Method	`__html__`	Undocumented
Class Variable	`__slots__`	Undocumented

Inherited from Undefined:

Async Method	`__aiter__`	Undocumented
Method	`__bool__`	Undocumented
Method	`__eq__`	Undocumented
Method	`__hash__`	Undocumented
Method	`__init__`	Undocumented
Method	`__iter__`	Undocumented
Method	`__len__`	Undocumented
Method	`__ne__`	Undocumented
Method	`__repr__`	Undocumented
Method	`__str__`	Undocumented
Method	`_fail_with_undefined_error`	Raise an `UndefinedError` when operations are performed on the undefined value.
Instance Variable	`_undefined_exception`	Undocumented
Instance Variable	`_undefined_hint`	Undocumented
Instance Variable	`_undefined_name`	Undocumented
Instance Variable	`_undefined_obj`	Undocumented
Property	`_undefined_message`	Build a message about the undefined value based on how it was accessed.

def __getattr__(self, _):

overrides jinja2.runtime.Undefined.__getattr__

Undocumented

Parameters
_:`str`	Undocumented
Returns
`ChainableUndefined`	Undocumented

def __html__(self):

Undocumented

Returns
`str`	Undocumented

__slots__: tuple =

overrides jinja2.runtime.Undefined.__slots__

Undocumented