53 lines
1.4 KiB
Python
53 lines
1.4 KiB
Python
# Natural Language Toolkit: Machine Translation
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#
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# Copyright (C) 2001-2023 NLTK Project
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# Author: Edward Loper <edloper@gmail.com>
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# Steven Bird <stevenbird1@gmail.com>
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# Peter Ljunglöf <peter.ljunglof@gu.se>
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# Tom Aarsen <>
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# URL: <https://www.nltk.org/>
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# For license information, see LICENSE.TXT
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"""
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NLTK Tree Package
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This package may be used for representing hierarchical language
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structures, such as syntax trees and morphological trees.
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"""
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# TODO: add LabelledTree (can be used for dependency trees)
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from nltk.tree.immutable import (
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ImmutableMultiParentedTree,
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ImmutableParentedTree,
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ImmutableProbabilisticTree,
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ImmutableTree,
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)
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from nltk.tree.parented import MultiParentedTree, ParentedTree
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from nltk.tree.parsing import bracket_parse, sinica_parse
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from nltk.tree.prettyprinter import TreePrettyPrinter
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from nltk.tree.probabilistic import ProbabilisticTree
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from nltk.tree.transforms import (
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chomsky_normal_form,
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collapse_unary,
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un_chomsky_normal_form,
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)
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from nltk.tree.tree import Tree
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__all__ = [
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"ImmutableMultiParentedTree",
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"ImmutableParentedTree",
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"ImmutableProbabilisticTree",
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"ImmutableTree",
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"MultiParentedTree",
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"ParentedTree",
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"bracket_parse",
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"sinica_parse",
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"TreePrettyPrinter",
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"ProbabilisticTree",
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"chomsky_normal_form",
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"collapse_unary",
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"un_chomsky_normal_form",
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"Tree",
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]
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