jinja2.runtime.ChainableUndefined Class Reference

Inheritance diagram for jinja2.runtime.ChainableUndefined:

Collaboration diagram for jinja2.runtime.ChainableUndefined:

Public Member Functions
str	__html__ (self)
"ChainableUndefined"	__getattr__ (self, str name)
"ChainableUndefined"	__getitem__ (self, str _name)
Public Member Functions inherited from jinja2.runtime.Undefined
None	__init__ (self, t.Optional[str] hint=None, t.Any obj=missing, t.Optional[str] name=None, t.Type[TemplateRuntimeError] exc=UndefinedError)
bool	__eq__ (self, t.Any other)
bool	__ne__ (self, t.Any other)
int	__hash__ (self)
str	__str__ (self)
int	__len__ (self)
t.Iterator[t.Any]	__iter__ (self)
t.AsyncIterator[t.Any]	__aiter__ (self)
bool	__bool__ (self)
str	__repr__ (self)

Additional Inherited Members
Protected Member Functions inherited from jinja2.runtime.Undefined
str	_undefined_message (self)
"te.NoReturn"	_fail_with_undefined_error (self, *t.Any args, **t.Any kwargs)
Protected Attributes inherited from jinja2.runtime.Undefined
	_undefined_hint
	_undefined_obj
	_undefined_name
	_undefined_exception
	_undefined_message

Detailed Description

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

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

.. versionadded:: 2.11.0

Member Function Documentation

__getattr__()

"ChainableUndefined" jinja2.runtime.ChainableUndefined.__getattr__	(		self,
		str	name
	)

Reimplemented from jinja2.runtime.Undefined.

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The documentation for this class was generated from the following file:

• docs/help/help-venv/lib/python3.12/site-packages/jinja2/runtime.py