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from .symlinknodemixin import SymlinkNodeMixin |
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from .util import _repr |
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class SymlinkNode(SymlinkNodeMixin): |
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""" |
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Tree node which references to another tree node. |
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Args: |
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target: Symbolic Link Target. Another tree node, which is refered to. |
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Keyword Args: |
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parent: Reference to parent node. |
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children: Iterable with child nodes. |
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*: Any other given attribute is just stored as attribute **in** `target`. |
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The :any:`SymlinkNode` has its own parent and its own child nodes. |
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All other attribute accesses are just forwarded to the target node. |
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>>> from anytree import SymlinkNode, Node, RenderTree |
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>>> root = Node("root") |
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>>> s1 = Node("sub1", parent=root, bar=17) |
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>>> l = SymlinkNode(s1, parent=root, baz=18) |
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>>> l0 = Node("l0", parent=l) |
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>>> print(RenderTree(root)) |
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Node('/root') |
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├── Node('/root/sub1', bar=17, baz=18) |
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└── SymlinkNode(Node('/root/sub1', bar=17, baz=18)) |
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└── Node('/root/sub1/l0') |
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Any modifications on the target node are also available on the linked node and vice-versa: |
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>>> s1.foo = 4 |
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>>> s1.foo |
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4 |
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>>> l.foo |
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4 |
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>>> l.foo = 9 |
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>>> s1.foo |
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9 |
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>>> l.foo |
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9 |
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""" |
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def __init__(self, target, parent=None, children=None, **kwargs): |
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self.target = target |
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self.target.__dict__.update(kwargs) |
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self.parent = parent |
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if children: |
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self.children = children |
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def __repr__(self): |
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return _repr(self, [repr(self.target)], nameblacklist=("target",)) |
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