spaCy/website/docs/usage/saving-loading.jade

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include ../../_includes/_mixins
p
| After training your model, you'll usually want to save its state, and load
| it back later. You can do this with the
| #[+api("language#save_to_directory") #[code Language.save_to_directory()]]
| method:
+code.
nlp.save_to_directory('/home/me/data/en_example_model')
p
| The directory will be created if it doesn't exist, and the whole pipeline
| will be written out. To make the model more convenient to deploy, we
| recommend wrapping it as a Python package.
+h(2, "generating") Generating a model package
+infobox("Important note")
| The model packages are #[strong not suitable] for the public
| #[+a("https://pypi.python.org") pypi.python.org] directory, which is not
| designed for binary data and files over 50 MB. However, if your company
| is running an internal installation of pypi, publishing your models on
| there can be a convenient solution to share them with your team.
p
| spaCy comes with a handy CLI command that will create all required files,
| and walk you through generating the meta data. You can also create the
| meta.json manually and place it in the model data directory, or supply a
| path to it using the #[code --meta] flag. For more info on this, see the
| #[+a("/docs/usage/cli/#package") #[code package] command] documentation.
+aside-code("meta.json", "json").
{
"name": "example_model",
"lang": "en",
"version": "1.0.0",
"spacy_version": ">=1.7.0,<2.0.0",
"description": "Example model for spaCy",
"author": "You",
"email": "you@example.com",
"license": "CC BY-SA 3.0"
}
+code(false, "bash").
python -m spacy package /home/me/data/en_example_model /home/me/my_models
p This command will create a model package directory that should look like this:
+code("Directory structure", "yaml").
└── /
├── MANIFEST.in # to include meta.json
├── meta.json # model meta data
├── setup.py # setup file for pip installation
└── en_example_model # model directory
├── __init__.py # init for pip installation
└── en_example_model-1.0.0 # model data
p
| You can also find templates for all files in our
| #[+a(gh("spacy-dev-resouces", "templates/model")) spaCy dev resources].
| If you're creating the package manually, keep in mind that the directories
| need to be named according to the naming conventions of
| #[code [language]_[name]] and #[code [language]_[name]-[version]]. The
| #[code lang] setting in the meta.json is also used to create the
| respective #[code Language] class in spaCy, which will later be returned
| by the model's #[code load()] method.
+h(2, "building") Building a model package
p
| To build the package, run the following command from within the
| directory. This will create a #[code .tar.gz] archive in a directory
| #[code /dist].
+code(false, "bash").
python setup.py sdist
p
| For more information on building Python packages, see the
| #[+a("https://setuptools.readthedocs.io/en/latest/") Python Setuptools documentation].
+h(2, "loading") Loading a model package
p
| Model packages can be installed by pointing pip to the model's
| #[code .tar.gz] archive:
+code(false, "bash").
pip install /path/to/en_example_model-1.0.0.tar.gz
p You'll then be able to load the model as follows:
+code.
import en_example_model
nlp = en_example_model.load()
p
| To load the model via #[code spacy.load()], you can also
| create a #[+a("/docs/usage/models#usage") shortcut link] that maps the
| package name to a custom model name of your choice:
+code(false, "bash").
python -m spacy link en_example_model example
+code.
import spacy
nlp = spacy.load('example')