dependency matcher not working

[Manish-ZS]

deppattern = [
{"RIGHT_ID": "wrote", "RIGHT_ATTRS": {"LEMMA": "write"}},
{"LEFT_ID": "wrote", "REL_OP": ">", "RIGHT_ID": "book",
"RIGHT_ATTRS": {"LEMMA": "book"}}
]

from spacy.matcher import DependencyMatcher

dmatcher = DependencyMatcher(nlp.vocab)

dmatcher.add("BOOK", [deppattern])

for _, (start, end) in dmatcher(doc):
print(doc[start].sent)

error : [E098] Invalid pattern specified: expected both SPEC and PATTERN.

[polm]

Please read the guide to Github Markdown for code.

What version of spaCy are you using? This code runs without issue for me.

import spacy

nlp = spacy.load("en_core_web_sm")
doc = nlp("I wrote a book last year.")

deppattern = [
        {"RIGHT_ID": "wrote", "RIGHT_ATTRS": {"LEMMA": "write"}},
        {"LEFT_ID": "wrote", "REL_OP": ">", "RIGHT_ID": "book",
            "RIGHT_ATTRS": {"LEMMA": "book"}}
        ]

from spacy.matcher import DependencyMatcher

dmatcher = DependencyMatcher(nlp.vocab)

dmatcher.add("BOOK", [deppattern])

for _, (start, end) in dmatcher(doc):
    print(doc[start].sent)

[Manish-ZS]

i am using 2.3 version on kaggle
it seems like its issue with kaggle docker which downgraded the spacy version from 3... .
do you have 2.3 version code to do same thing?

[polm]

The DependencyMatcher was introduced in v3, so I'm surprised your code gets that far without an error - maybe it was added late in v2 as an experimental feature or something... I would strongly recommend figuring out how to upgrade your Kaggle environment.