get ImportError:运行scrapy时没有名为\u util的模块

Question

我正在以下虚拟环境中运行一个废蜘蛛：

Python 2.7.10

Package                 Version    
----------------------- -----------
:
:      
pyOpenSSL               18.0.0     
:
:    

它似乎有最新版本的pyOpenSSL。但是，当我跑步时：

^{pr2}$

我得到以下错误：

2018-12-13 12:29:27 [scrapy.utils.log] INFO: Scrapy 1.5.1 started (bot: 
test_webcrawler)
2018-12-13 12:29:27 [scrapy.utils.log] INFO: Versions: lxml 4.2.5.0, 
libxml2 2.9.8, cssselect 1.0.3, parsel 1.5.1, w3lib 1.19.0, Twisted 
 18.9.0, Python 2.7.10 (default, Aug 17 2018, 19:45:58) - [GCC 4.2.1 
Compatible Apple LLVM 10.0.0 (clang-1000.0.42)], pyOpenSSL 0.13.1 
(LibreSSL 2.2.7), cryptography 2.4.2, Platform Darwin-18.2.0-x86_64- 
i386-64bit
2018-12-13 12:29:27 [scrapy.crawler] INFO: Overridden settings: 
{'NEWSPIDER_MODULE': 'test_webcrawler.spiders', 'SPIDER_MODULES': 
['test_webcrawler.spiders'], 'DUPEFILTER_CLASS': 
'scrapy.dupefilters.BaseDupeFilter', 'CONCURRENT_REQUESTS': 1, 
'BOT_NAME': 'test_webcrawler', 'LOG_STDOUT': True, 'USER_AGENT': 
'circles_bot', 'DOWNLOAD_DELAY': 3}
Traceback (most recent call last):
  File "/usr/local/bin/scrapy", line 11, in <module>
    sys.exit(execute())
:
:
  File "/Library/Python/2.7/site- 
packages/twisted/internet/_sslverify.py", line 15, in <module>   
   from OpenSSL._util import lib as pyOpenSSLlib
ImportError: No module named _util

有人面临同样的问题吗？我正在寻找解决问题的任何提示：）