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145 lines
3.5 KiB
145 lines
3.5 KiB
# coding: utf8
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from __future__ import unicode_literals
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import os
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import sys
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import ujson
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import itertools
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import locale
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from thinc.neural.util import copy_array
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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try:
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import copy_reg
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except ImportError:
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import copyreg as copy_reg
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try:
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from cupy.cuda.stream import Stream as CudaStream
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except ImportError:
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CudaStream = None
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try:
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import cupy
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except ImportError:
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cupy = None
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try:
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from thinc.neural.optimizers import Optimizer
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except ImportError:
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from thinc.neural.optimizers import Adam as Optimizer
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pickle = pickle
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copy_reg = copy_reg
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CudaStream = CudaStream
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cupy = cupy
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copy_array = copy_array
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izip = getattr(itertools, "izip", zip)
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is_windows = sys.platform.startswith("win")
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is_linux = sys.platform.startswith("linux")
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is_osx = sys.platform == "darwin"
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# See: https://github.com/benjaminp/six/blob/master/six.py
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is_python2 = sys.version_info[0] == 2
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is_python3 = sys.version_info[0] == 3
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is_python_pre_3_5 = is_python2 or (is_python3 and sys.version_info[1] < 5)
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if is_python2:
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bytes_ = str
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unicode_ = unicode # noqa: F821
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basestring_ = basestring # noqa: F821
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input_ = raw_input # noqa: F821
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json_dumps = lambda data: ujson.dumps(
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data, indent=2, escape_forward_slashes=False
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).decode("utf8")
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path2str = lambda path: str(path).decode("utf8")
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elif is_python3:
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bytes_ = bytes
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unicode_ = str
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basestring_ = str
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input_ = input
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json_dumps = lambda data: ujson.dumps(data, indent=2, escape_forward_slashes=False)
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path2str = lambda path: str(path)
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def b_to_str(b_str):
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if is_python2:
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return b_str
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# important: if no encoding is set, string becomes "b'...'"
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return str(b_str, encoding="utf8")
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def getattr_(obj, name, *default):
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if is_python3 and isinstance(name, bytes):
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name = name.decode("utf8")
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return getattr(obj, name, *default)
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def symlink_to(orig, dest):
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if is_windows:
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import subprocess
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subprocess.call(["mklink", "/d", path2str(orig), path2str(dest)], shell=True)
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else:
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orig.symlink_to(dest)
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def symlink_remove(link):
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# https://stackoverflow.com/q/26554135/6400719
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if os.path.isdir(path2str(link)) and is_windows:
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# this should only be on Py2.7 and windows
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os.rmdir(path2str(link))
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else:
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os.unlink(path2str(link))
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def is_config(python2=None, python3=None, windows=None, linux=None, osx=None):
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return (
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python2 in (None, is_python2)
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and python3 in (None, is_python3)
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and windows in (None, is_windows)
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and linux in (None, is_linux)
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and osx in (None, is_osx)
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)
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def normalize_string_keys(old):
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"""Given a dictionary, make sure keys are unicode strings, not bytes."""
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new = {}
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for key, value in old.items():
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if isinstance(key, bytes_):
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new[key.decode("utf8")] = value
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else:
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new[key] = value
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return new
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def import_file(name, loc):
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loc = str(loc)
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if is_python_pre_3_5:
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import imp
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return imp.load_source(name, loc)
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else:
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import importlib.util
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spec = importlib.util.spec_from_file_location(name, str(loc))
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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return module
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def locale_escape(string, errors="replace"):
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"""
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Mangle non-supported characters, for savages with ascii terminals.
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"""
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encoding = locale.getpreferredencoding()
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string = string.encode(encoding, errors).decode("utf8")
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return string
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