spacy_legacy_registry_hashembed_v1_architecture_backward_compatibility.py

1import spacy
2from spacy import registry
3import spacy_legacy
4
5# spacy-legacy provides registered functions for older architectures.
6# When you import spacy_legacy, it automatically registers them into spaCy's registry.
7
8# Example: Accessing a legacy architecture function through the registry
9# In a real-world scenario, this is usually handled via a config.cfg file.
10hash_embed_v1 = registry.architectures.get("spacy-legacy.HashEmbed.v1")
11
12# Use the architecture to create a model component
13# This allows newer versions of spaCy to load and run models trained with older logic.
14model = hash_embed_v1(
15    nO=128,
16    nV=2000,
17    seed=42
18)
19
20print(f"Successfully loaded legacy architecture: {model.name}")