spaCy - Doc.has_extension Classmethod

As name implies, this class method will check whether an extension has been registered on the Doc class or not.

Example

Refer the example for Doc.has_extension classmethod given below −

import spacy
nlp_model = spacy.load("en_core_web_sm")
from spacy.tokens import Doc
Doc.set_extension('has_city', default=False, force = True)
Doc.has_extension('has_city')

Output

The output is mentioned below −

True