mirror of
https://github.com/explosion/spaCy.git
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79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
# coding: utf8
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from __future__ import unicode_literals
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import plac
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import requests
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import os
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import subprocess
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import sys
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from .link import link
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from ..util import prints
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from .. import about
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@plac.annotations(
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model=("model to download (shortcut or model name)", "positional", None, str),
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direct=("force direct download. Needs model name with version and won't "
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"perform compatibility check", "flag", "d", bool)
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)
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def download(cmd, model, direct=False):
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"""
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Download compatible model from default download path using pip. Model
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can be shortcut, model name or, if --direct flag is set, full model name
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with version.
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"""
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if direct:
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download_model('{m}/{m}.tar.gz'.format(m=model))
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else:
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shortcuts = get_json(about.__shortcuts__, "available shortcuts")
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model_name = shortcuts.get(model, model)
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compatibility = get_compatibility()
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version = get_version(model_name, compatibility)
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download_model('{m}-{v}/{m}-{v}.tar.gz'.format(m=model_name, v=version))
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try:
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link(None, model_name, model, force=True)
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except:
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# Dirty, but since spacy.download and the auto-linking is mostly
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# a convenience wrapper, it's best to show a success message and
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# loading instructions, even if linking fails.
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prints("Creating a shortcut link for 'en' didn't work (maybe you "
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"don't have admin permissions?), but you can still load "
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"the model via its full package name:",
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"nlp = spacy.load('%s')" % model_name,
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title="Download successful")
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def get_json(url, desc):
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r = requests.get(url)
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if r.status_code != 200:
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prints("Couldn't fetch %s. Please find a model for your spaCy installation "
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"(v%s), and download it manually." % (desc, about.__version__),
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about.__docs_models__, title="Server error (%d)" % r.status_code, exits=1)
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return r.json()
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def get_compatibility():
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version = about.__version__
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comp_table = get_json(about.__compatibility__, "compatibility table")
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comp = comp_table['spacy']
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if version not in comp:
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prints("No compatible models found for v%s of spaCy." % version,
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title="Compatibility error", exits=1)
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return comp[version]
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def get_version(model, comp):
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if model not in comp:
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version = about.__version__
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prints("No compatible model found for '%s' (spaCy v%s)." % (model, version),
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title="Compatibility error", exits=1)
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return comp[model][0]
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def download_model(filename):
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download_url = about.__download_url__ + '/' + filename
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subprocess.call([sys.executable, '-m',
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'pip', 'install', '--no-cache-dir', download_url],
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env=os.environ.copy())
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