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zope.interface compliant ordered dictionary.

Project Description

zodict

Ordered dictionary which implements the corresponding zope.interface.common.mapping interface

>>> from zope.interface.common.mapping import IFullMapping
>>> from zodict import zodict
>>> zod = zodict()
>>> IFullMapping.providedBy(zod)
True

Node

This is a zodict which provides a location. Location the zope way means each item in the node-tree knows its parent and its own name

>>> from zope.location.interface import ILocation
>>> from zodict.node import Node
>>> root = Node('root')
>>> ILocation.providedBy(Node)
True

>>> root['child'] = Node()
>>> root['child'].path
['root', 'child']

>>> child = root['child']
>>> child.__name__
'child'

>>> child.__parent__
<Node object 'root' at ...>

The filtereditems function

>>> from zope.interface import Interface
>>> from zope.interface import alsoProvides
>>> class IMarker(Interface): pass
>>> alsoProvides(root['child']['subchild'], IMarker)
>>> IMarker.providedBy(root['child']['subchild'])
True

>>> for item in root['child'].filtereditems(IMarker):
...     print item.path
['root', 'child', 'subchild']

UUID related operations on Node

>>> uuid = root['child']['subchild'].uuid
>>> uuid
UUID('...')

>>> root.node(uuid).path
['root', 'child', 'subchild']

>>> root.uuid = uuid
Traceback (most recent call last):
  ...
ValueError: Given uuid was already used for another Node

>>> import uuid
>>> newuuid = uuid.uuid4()

>>> root.uuid = newuuid
>>> root['child'].node(newuuid).path
['root']

Node insertion (an insertafter function exist as well)

>>> root['child1'] = Node()
>>> root['child2'] = Node()

>>> node = Node('child3')
>>> root.insertbefore(node, root['child2'])
>>> root.printtree()
<class 'zodict.node.Node'>: root
  <class 'zodict.node.Node'>: child1
  <class 'zodict.node.Node'>: child3
  <class 'zodict.node.Node'>: child2

Nodes can not be moved. Therefor you have to read it, delete it from tree and add it elsewhere again

>>> node = root['child2']
>>> del root['child2']
>>> root.values()
[<Node object 'child1' at ...>, <Node object 'child3' at ...>]

>>> root.insertbefore(node, root['child1'])
>>> root.printtree()
<class 'zodict.node.Node'>: root
    <class 'zodict.node.Node'>: child2
    <class 'zodict.node.Node'>: child1
    <class 'zodict.node.Node'>: child3

Changes

Version 1.6.0 (svn)

-remove the traverser module.

-improve insertbefore and insertafter a little bit.
rnix, 2009-11-28
-add index Attribute to Node. Allows access to the internal
_index attribute. rnix, 2009-11-28
-remove @accept and @return decorators. Just overhead.
rnix, 2009-11-28

Version 1.5.0

-add insertbefore and insertafter function to Node.
rnix, 2009-11-27
-fix printtree if Node.__name__ is None.
rnix, 2009-11-20
-add printtree debug helper function to Node.
rnix, 2009-11-09
-define own Traverser interface and reduce dependencies.
rnix, 2009-10-28
-removed import of tests from zodicts __init__. this caused import errors
if interlude wasnt installed. jensens, 2009-07-16

Version 1.4.0

-Don’t allow classes as values of a Node. Attribute __name__
conflicts. jensens, 2009-05-06
-repr(nodeobj) now returns the real classname and not fixed
<Node object this helps a lot while testing and using classes inheriting from Node! jensens, 2009-05-06
-Make tests run with python setup.py test.
Removed superflous dependency on zope.testing. jensens, 2009-05-06

Version 1.3.3

-Fix ITraverser interface import including BBB.

Version 1.3.2

-Add root property to Node.
thet, 2009-04-24

Version 1.3.1

-Add __delitem__ function to Node.
rnix, 2009-04-16

Version 1.3

-Add uuid Attribute and node function to Node.
rnix, 2009-03-23

Version 1.2

-Add filtereditems function to Node.
rnix, 2009-03-22

Version 1.1

-Add INode interface and implementation.
rnix, 2009-03-18

Credits

-Written by Robert Niederreiter <rnix@squarewave.at>
2009-03-17
Release History

Release History

History Node

1.9.3

History Node

1.9.2

History Node

1.9.1

History Node

1.9.0

History Node

1.8.0

History Node

1.7.0

History Node

1.6.1

This version
History Node

1.6.0

History Node

1.5.0

History Node

1.4.1

History Node

1.4.0

History Node

1.3.1

History Node

1.3

History Node

1.2

History Node

1.1

History Node

1.0

Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
zodict-1.6.0.tar.gz (6.9 kB) Copy SHA256 Checksum SHA256 Source Nov 30, 2009

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