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Add cross-reference to typing.NamedTuple. Doctest two more examples.

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This commit is contained in:
Raymond Hettinger 2016-08-16 13:13:17 -07:00
parent f59249b048
commit fd27f62a74
1 changed files with 10 additions and 4 deletions
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14
Doc/library/collections.rst
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@ -850,7 +850,9 @@ field names, the method and attribute names start with an underscore.
.. method:: somenamedtuple._asdict()
Return a new :class:`OrderedDict` which maps field names to their corresponding
values::
values:
.. doctest::
>>> p = Point(x=11, y=22)
>>> p._asdict()
@ -912,7 +914,9 @@ Since a named tuple is a regular Python class, it is easy to add or change
functionality with a subclass. Here is how to add a calculated field and
a fixed-width print format:
>>> class Point(namedtuple('Point', 'x y')):
.. doctest::
>>> class Point(namedtuple('Point', ['x', 'y'])):
... __slots__ = ()
... @property
... def hypot(self):
@ -963,8 +967,10 @@ customize a prototype instance:
constructor that is convenient for use cases where named tuples are being
subclassed.
* :meth:`types.SimpleNamespace` for a mutable namespace based on an underlying
dictionary instead of a tuple.
* See :meth:`types.SimpleNamespace` for a mutable namespace based on an
underlying dictionary instead of a tuple.
* See :meth:`typing.NamedTuple` for a way to add type hints for named tuples.
:class:`OrderedDict` objects