dep2con 0.2.0

Convert Universal Dependencies parses into constituency representations.

dep2con

dep2con converts Universal Dependencies (UD) parses into constituency representations. It accepts either a CoNLL-U file or text processed with the Stanza dependency parser.

Requirements

• Python 3.14 or newer
• pyconll 4.0 or newer for CoNLL-U input
• stanza when parsing raw text

Installation

Install the published package:

python -m pip install dep2con

For development from a clone:

python -m pip install -e ".[dev]"

Usage

from dep2con import make_const

results = make_const("input.conllu")

for dep2con in results:
    print(dep2con.sent_parse)
    print(dep2con.sent_text)
    print(dep2con.x_phrases)

make_const() returns a list with one Dep2Con object per input sentence. Each result has these attributes:

• sent_parse
• x_phrases
• sent_dict
• sent_text
• sent_len
• sentence_index
• source

To parse raw text instead of loading CoNLL-U:

results = make_const("Cats sleep.", lang="en", use_parser=True)

Development

Run the test suite:

python -m pytest

Build distributable files:

python -m build