mirror of
https://github.com/explosion/spaCy.git
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ffdd5e964f
* Add todo * Auto-format * Update wasabi pin * Format training results with wasabi * Remove loading animation from model saving Currently behaves weirdly * Inline messages * Remove unnecessary path2str Already taken care of by printer * Inline messages in CLI * Remove unused function * Move loading indicator into loading function * Check for invalid whitespace entities
103 lines
3.7 KiB
Python
103 lines
3.7 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 wasabi import Printer
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from .link import link
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from ..util import get_package_path
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from .. import about
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msg = Printer()
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@plac.annotations(
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model=("Model to download (shortcut or name)", "positional", None, str),
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direct=("Force direct download of name + version", "flag", "d", bool),
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pip_args=("additional arguments to be passed to `pip install` on model install"),
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)
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def download(model, direct=False, *pip_args):
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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. For direct downloads, the compatibility check will be skipped.
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"""
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if direct:
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dl = download_model("{m}/{m}.tar.gz#egg={m}".format(m=model), pip_args)
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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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dl_tpl = "{m}-{v}/{m}-{v}.tar.gz#egg={m}=={v}"
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dl = download_model(dl_tpl.format(m=model_name, v=version), pip_args)
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if dl != 0: # if download subprocess doesn't return 0, exit
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sys.exit(dl)
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try:
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# Get package path here because link uses
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# pip.get_installed_distributions() to check if model is a
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# package, which fails if model was just installed via
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# subprocess
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package_path = get_package_path(model_name)
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link(model_name, model, force=True, model_path=package_path)
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except: # noqa: E722
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# Dirty, but since spacy.download and the auto-linking is
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# mostly a convenience wrapper, it's best to show a success
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# message and loading instructions, even if linking fails.
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msg.warn(
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"Download successful but linking failed",
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"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 the "
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"model via its full package name: "
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"nlp = spacy.load('{}')".format(model_name),
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)
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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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msg.fail(
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"Server error ({})".format(r.status_code),
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"Couldn't fetch {}. Please find a model for your spaCy "
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"installation (v{}), and download it manually. For more "
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"details, see the documentation: "
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"https://spacy.io/usage/models".format(desc, about.__version__),
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exits=1,
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)
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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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version = version.rsplit(".dev", 1)[0]
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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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msg.fail("No compatible models found for v{} of spaCy".format(version), exits=1)
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return comp[version]
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def get_version(model, comp):
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model = model.rsplit(".dev", 1)[0]
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if model not in comp:
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msg.fail(
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"No compatible model found for '{}' "
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"(spaCy v{}).".format(model, about.__version__),
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exits=1,
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)
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return comp[model][0]
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def download_model(filename, user_pip_args=None):
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download_url = about.__download_url__ + "/" + filename
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pip_args = ["--no-cache-dir", "--no-deps"]
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if user_pip_args:
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pip_args.extend(user_pip_args)
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cmd = [sys.executable, "-m", "pip", "install"] + pip_args + [download_url]
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return subprocess.call(cmd, env=os.environ.copy())
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