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- Doc Class ContextManager and Property
- spaCy - Container Token Class
- spaCy - Token Properties
- spaCy - Container Span Class
- spaCy - Span Class Properties
- spaCy - Container Lexeme Class
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- spaCy Useful Resources
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spaCy - Span.set_extension Classmethod
This class method was introduced in version 2.0. It defines a custom attribute on the Span. Once done, that attribute will become available via Span._.
Arguments
The table below explains its arguments −
NAME | TYPE | DESCRIPTION |
---|---|---|
name | Unicode | This argument represents the name of the attribute to set by the extension. For example, ‘his_attr’ will be available as span._.his_attr. |
default | - | It is the optional default value of the attribute for the case when no getter or method is defined. |
method | callable | It is used to set a custom method on the object. For example, span._.compare(other_doc). |
getter | callable | This attribute represents the getter function that will takes the object and will return an attribute value. It is mainly called when the user accesses the ._ attribute. |
setter | callable | This attribute represents the Setter function that will take the Doc & a value and will modify the object. It is mainly called when the user writes to the Span._ attribute. |
Force | bool | It will forcefully overwrite an existing attribute. |
Example
An example of Span.set_extension class method is as follows −
import spacy nlp_model = spacy.load("en_core_web_sm") from spacy.tokens import Span city = lambda span: any(city in doc.text for city in ("New York", "India", "USA")) Span.set_extension("has_city", getter=city, force = True) doc = nlp_model("I like India") doc[0:3]._.has_city
Output
Upon execution, you will receive the following output −
True
spacy_container_span_class.htm
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