mirror of
https://github.com/explosion/spaCy.git
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231 lines
6.7 KiB
Python
231 lines
6.7 KiB
Python
# coding: utf8
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from __future__ import unicode_literals, print_function
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import ujson
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import regex as re
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from pathlib import Path
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import sys
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import textwrap
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from .compat import basestring_, unicode_, input_
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LANGUAGES = {}
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_data_path = Path(__file__).parent / 'data'
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def set_lang_class(name, cls):
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global LANGUAGES
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LANGUAGES[name] = cls
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def get_lang_class(name):
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if name in LANGUAGES:
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return LANGUAGES[name]
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lang = re.split('[^a-zA-Z0-9]', name, 1)[0]
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if lang not in LANGUAGES:
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raise RuntimeError('Language not supported: %s' % name)
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return LANGUAGES[lang]
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def get_data_path(require_exists=True):
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if not require_exists:
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return _data_path
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else:
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return _data_path if _data_path.exists() else None
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def set_data_path(path):
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global _data_path
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_data_path = ensure_path(path)
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def ensure_path(path):
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if isinstance(path, basestring_):
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return Path(path)
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else:
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return path
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def get_cuda_stream(require=False):
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# TODO: Error and tell to install chainer if not found
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# Requires GPU
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try:
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from cupy.cuda.stream import Stream
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except ImportError:
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return None
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return Stream()
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def read_regex(path):
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path = ensure_path(path)
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with path.open() as file_:
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entries = file_.read().split('\n')
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expression = '|'.join(['^' + re.escape(piece) for piece in entries if piece.strip()])
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return re.compile(expression)
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def compile_prefix_regex(entries):
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if '(' in entries:
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# Handle deprecated data
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expression = '|'.join(['^' + re.escape(piece) for piece in entries if piece.strip()])
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return re.compile(expression)
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else:
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expression = '|'.join(['^' + piece for piece in entries if piece.strip()])
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return re.compile(expression)
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def compile_suffix_regex(entries):
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expression = '|'.join([piece + '$' for piece in entries if piece.strip()])
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return re.compile(expression)
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def compile_infix_regex(entries):
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expression = '|'.join([piece for piece in entries if piece.strip()])
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return re.compile(expression)
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def normalize_slice(length, start, stop, step=None):
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if not (step is None or step == 1):
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raise ValueError("Stepped slices not supported in Span objects."
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"Try: list(tokens)[start:stop:step] instead.")
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if start is None:
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start = 0
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elif start < 0:
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start += length
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start = min(length, max(0, start))
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if stop is None:
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stop = length
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elif stop < 0:
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stop += length
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stop = min(length, max(start, stop))
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assert 0 <= start <= stop <= length
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return start, stop
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def check_renamed_kwargs(renamed, kwargs):
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for old, new in renamed.items():
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if old in kwargs:
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raise TypeError("Keyword argument %s now renamed to %s" % (old, new))
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def read_json(location):
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with location.open('r', encoding='utf8') as f:
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return ujson.load(f)
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def parse_package_meta(package_path, package, require=True):
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"""
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Check if a meta.json exists in a package and return its contents as a
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dictionary. If require is set to True, raise an error if no meta.json found.
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"""
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# TODO: Allow passing in full model path and only require one argument
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# instead of path and package name. This lets us avoid passing in an awkward
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# empty string in spacy.load() if user supplies full model path.
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location = package_path / package / 'meta.json'
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if location.is_file():
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return read_json(location)
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elif require:
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raise IOError("Could not read meta.json from %s" % location)
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else:
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return None
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def get_raw_input(description, default=False):
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"""
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Get user input via raw_input / input and return input value. Takes a
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description for the prompt, and an optional default value that's displayed
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with the prompt.
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"""
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additional = ' (default: {d})'.format(d=default) if default else ''
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prompt = ' {d}{a}: '.format(d=description, a=additional)
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user_input = input_(prompt)
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return user_input
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def print_table(data, **kwargs):
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"""
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Print data in table format. Can either take a list of tuples or a
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dictionary, which will be converted to a list of tuples.
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"""
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if type(data) == dict:
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data = list(data.items())
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tpl_msg = '\n{msg}\n'
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tpl_title = '\n \033[93m{msg}\033[0m'
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tpl_row =" {:<15}" * len(data[0])
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table = '\n'.join([tpl_row.format(l, v) for l, v in data])
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if 'title' in kwargs and kwargs['title']:
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print(tpl_title.format(msg=kwargs['title']))
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print(tpl_msg.format(msg=table))
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def print_markdown(data, **kwargs):
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"""
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Print listed data in GitHub-flavoured Markdown format so it can be
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copy-pasted into issues. Can either take a list of tuples or a dictionary,
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which will be converted to a list of tuples.
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"""
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def excl_value(value):
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# don't print value if it contains absolute path of directory (i.e.
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# personal info). Other conditions can be included here if necessary.
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if unicode_(Path(__file__).parent) in value:
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return True
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if type(data) == dict:
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data = list(data.items())
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tpl_msg = "\n{msg}\n"
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tpl_title = "\n## {msg}"
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tpl_row = "* **{l}:** {v}"
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markdown = '\n'.join([tpl_row.format(l=l, v=v) for l, v in data if not excl_value(v)])
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if 'title' in kwargs and kwargs['title']:
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print(tpl_title.format(msg=kwargs['title']))
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print(tpl_msg.format(msg=markdown))
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def print_msg(*text, **kwargs):
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"""
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Print formatted message. Each positional argument is rendered as newline-
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separated paragraph. If kwarg 'title' exist, title is printed above the text
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and highlighted (using ANSI escape sequences manually to avoid unnecessary
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dependency).
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"""
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message = '\n\n'.join([_wrap_text(t) for t in text])
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tpl_msg = '\n{msg}\n'
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tpl_title = '\n\033[93m{msg}\033[0m'
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if 'title' in kwargs and kwargs['title']:
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title = _wrap_text(kwargs['title'])
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print(tpl_title.format(msg=title))
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print(tpl_msg.format(msg=message))
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def _wrap_text(text):
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"""
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Wrap text at given width using textwrap module. Indent should consist of
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spaces. Its length is deducted from wrap width to ensure exact wrapping.
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"""
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wrap_max = 80
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indent = ' '
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wrap_width = wrap_max - len(indent)
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return textwrap.fill(text, width=wrap_width, initial_indent=indent,
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subsequent_indent=indent, break_long_words=False,
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break_on_hyphens=False)
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def sys_exit(*messages, **kwargs):
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"""
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Performs SystemExit. For modules used from the command line, like
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download and link. To print message, use the same arguments as for
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print_msg().
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"""
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if messages:
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print_msg(*messages, **kwargs)
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sys.exit(0)
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