Mac安装pyspider启动时出现以下错误：

$ pyspider all
phantomjs fetcher running on port 25555
[I 180114 09:48:55 result_worker:49] result_worker starting...
Process Process-4:
Traceback (most recent call last):
  File "/usr/local/Cellar/python3/3.6.4_2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/local/Cellar/python3/3.6.4_2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/multiprocessing/process.py", line 93, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pyspider/run.py", line 236, in fetcher
    Fetcher = load_cls(None, None, fetcher_cls)
  File "/usr/local/lib/python3.6/site-packages/pyspider/run.py", line 48, in load_cls
    return utils.load_object(value)
  File "/usr/local/lib/python3.6/site-packages/pyspider/libs/utils.py", line 359, in load_object
    module = __import__(module_name, globals(), locals(), [object_name])
  File "/usr/local/lib/python3.6/site-packages/pyspider/fetcher/__init__.py", line 1, in <module>
    from .tornado_fetcher import Fetcher
  File "/usr/local/lib/python3.6/site-packages/pyspider/fetcher/tornado_fetcher.py", line 30, in <module>
    from tornado.curl_httpclient import CurlAsyncHTTPClient
  File "/usr/local/lib/python3.6/site-packages/tornado/curl_httpclient.py", line 24, in <module>
    import pycurl  # type: ignore
ImportError: pycurl: libcurl link-time ssl backend (openssl) is different from compile-time ssl backend (none/other)
[I 180114 09:48:55 processor:211] processor starting...
[I 180114 09:48:55 scheduler:647] scheduler starting...
Traceback (most recent call last):
  File "/usr/local/bin/pyspider", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.6/site-packages/pyspider/run.py", line 754, in main
    cli()
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pyspider/run.py", line 497, in all
    ctx.invoke(webui, **webui_config)
  File "/usr/local/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pyspider/run.py", line 333, in webui
    app = load_cls(None, None, webui_instance)
  File "/usr/local/lib/python3.6/site-packages/pyspider/run.py", line 48, in load_cls
    return utils.load_object(value)
  File "/usr/local/lib/python3.6/site-packages/pyspider/libs/utils.py", line 359, in load_object
    module = __import__(module_name, globals(), locals(), [object_name])
  File "/usr/local/lib/python3.6/site-packages/pyspider/webui/__init__.py", line 8, in <module>
    from . import app, index, debug, task, result, login
  File "/usr/local/lib/python3.6/site-packages/pyspider/webui/app.py", line 17, in <module>
    from pyspider.fetcher import tornado_fetcher
  File "/usr/local/lib/python3.6/site-packages/pyspider/fetcher/__init__.py", line 1, in <module>
    from .tornado_fetcher import Fetcher
  File "/usr/local/lib/python3.6/site-packages/pyspider/fetcher/tornado_fetcher.py", line 30, in <module>
    from tornado.curl_httpclient import CurlAsyncHTTPClient
  File "/usr/local/lib/python3.6/site-packages/tornado/curl_httpclient.py", line 24, in <module>
    import pycurl  # type: ignore
ImportError: pycurl: libcurl link-time ssl backend (openssl) is different from compile-time ssl backend (none/other)

Pytohon和pip版本：

$ python3 -V
Python 3.6.4

$ pip3 -V
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)