我正在尝试在conda环境中安装spacy，但是安装失败并显示以下错误消息：
$ pip install -U spacy --no-cache
Collecting spacy
Downloading spacy-2.2.4.tar.gz (6.1 MB)
|████████████████████████████████| 6.1 MB 4.1 MB/s
Installing build dependencies ... error
ERROR: Command errored out with exit status 1:
command: /home/sfalk/miniconda3/envs/t2t/bin/python /home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-cbh_k9yk/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel 'cython>=0.25' 'cymem>=2.0.2,<2.1.0' 'preshed>=3.0.2,<3.1.0' 'murmurhash>=0.28.0,<1.1.0' thinc==7.4.0
cwd: None
Complete output (41 lines):
Traceback (most recent call last):
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/__main__.py", line 19, in <module>
sys.exit(_main())
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/cli/main.py", line 73, in main
command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/commands/__init__.py", line 96, in create_command
module = importlib.import_module(module_path)
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 985, in _gcd_import
File "<frozen importlib._bootstrap>", line 968, in _find_and_load
File "<frozen importlib._bootstrap>", line 957, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 697, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/commands/install.py", line 24, in <module>
from pip._internal.cli.req_command import RequirementCommand
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/cli/req_command.py", line 21, in <module>
from pip._internal.req.constructors import (
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/req/__init__.py", line 11, in <module>
from .req_file import parse_requirements
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/req/req_file.py", line 25, in <module>
from pip._internal.req.constructors import (
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/req/constructors.py", line 28, in <module>
from pip._internal.req.req_install import InstallRequirement
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/req/req_install.py", line 30, in <module>
from pip._internal.operations.install.wheel import install_wheel
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip/_internal/operations/install/wheel.py", line 10, in <module>
import compileall
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/compileall.py", line 20, in <module>
from concurrent.futures import ProcessPoolExecutor
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/concurrent/futures/__init__.py", line 8, in <module>
from concurrent.futures._base import (FIRST_COMPLETED,
File "/home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/concurrent/futures/_base.py", line 381
raise exception_type, self._exception, self._traceback
^
SyntaxError: invalid syntax
----------------------------------------
ERROR: Command errored out with exit status 1: /home/sfalk/miniconda3/envs/t2t/bin/python /home/sfalk/miniconda3/envs/t2t/lib/python3.5/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-cbh_k9yk/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel 'cython>=0.25' 'cymem>=2.0.2,<2.1.0' 'preshed>=3.0.2,<3.1.0' 'murmurhash>=0.28.0,<1.1.0' thinc==7.4.0 Check the logs for full command output.
不知道那里发生了什么。 SyntaxError？
有什么解决方法吗？