Tree¶

exception bertlv.tree.TlvError(message: str, **kwargs)[source]¶: Bases: Exception

class bertlv.tree.TlvNode(tag: bertlv.tag.Tag, value: Optional[bytes] = None, parent: Optional[bertlv.tree.TlvNode] = None, children: Optional[Iterable[bertlv.tree.TlvNode]] = None)[source]¶

Bases: anytree.node.node.Node

property value¶

property length¶

is_constructed() → bool [source]¶

dump() → str [source]¶: Return a string representing the tree starting at this node.

resolve(path: str) → bertlv.tree.TlvNode [source]¶: Return the node at path.

class bertlv.tree.Tree(children: Optional[Iterable[bertlv.tree.TlvNode]] = None)[source]¶: Bases: bertlv.tree.TlvNode

class bertlv.tree.BuilderBase[source]¶

Bases: abc.ABC

abstract close() → bertlv.tree.Tree [source]¶: Flush the builder buffers, and return the tree.

abstract end(tag: bertlv.tag.Tag) → Any[source]¶: Close the current TLV node.

abstract data(data: bytes) → Any[source]¶: Add a value to the current TLV node.

abstract start(tag: bertlv.tag.Tag) → Any[source]¶: Open a new TLV node with the given tag.

class bertlv.tree.TreeBuilder(node_factory: Optional[Callable] = None)[source]¶

Bases: bertlv.tree.BuilderBase

close() → bertlv.tree.Tree [source]¶: Flush the builder buffers, and return the tree.

end(tag: bertlv.tag.Tag) → bertlv.tree.TlvNode [source]¶: Close the current TLV node. Return the closed node.

data(data: bytes) → Any[source]¶: Add a value to the current TLV node.

start(tag: bertlv.tag.Tag) → bertlv.tree.TlvNode [source]¶: Open a new TLV node with the given tag. Return the opened node.