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Fit nits

This commit is contained in:
Raymond Hettinger 2007-09-20 03:03:43 +00:00
parent 8c20244069
commit 7268e9d1ff
1 changed files with 11 additions and 7 deletions
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18
Doc/library/collections.rst
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@ -360,8 +360,8 @@ Setting the :attr:`default_factory` to :class:`set` makes the
.. _named-tuple-factory:
:func:`NamedTuple` factory function
-----------------------------------
:func:`NamedTuple` Factory Function for Tuples with Named Fields
----------------------------------------------------------------
Named tuples assign meaning to each position in a tuple and allow for more readable,
self-documenting code. They can be used wherever regular tuples are used, and
@ -376,12 +376,12 @@ they add the ability to access fields by name instead of position index.
method which lists the tuple contents in a ``name=value`` format.
The *fieldnames* are specified in a single string with each fieldname separated by
a space and/or comma. Any valid Python identifier may be used for a field name.
a space and/or comma. Any valid Python identifier may be used for a fieldname.
If *verbose* is true, the *NamedTuple* call will print the class definition.
If *verbose* is true, will print the class definition.
*NamedTuple* instances do not have per-instance dictionaries, so they are
lightweight, requiring no more memory than regular tuples.
lightweight and require no more memory than regular tuples.
.. versionadded:: 2.6
@ -434,7 +434,9 @@ an additonal method and an informational read-only attribute.
.. method:: somenamedtuple.replace(field, value)
Return a new instance of the named tuple replacing the named *field* with a new *value*::
Return a new instance of the named tuple replacing the named *field* with a new *value*:
::
>>> p = Point(x=11, y=22)
>>> p.__replace__('x', 33)
@ -447,7 +449,9 @@ an additonal method and an informational read-only attribute.
Return a tuple of strings listing the field names. This is useful for introspection,
for converting a named tuple instance to a dictionary, and for combining named tuple
types to create new named tuple types::
types to create new named tuple types:
::
>>> p.__fields__ # view the field names
('x', 'y')