module' object has no attribute 'OP_NO_TLSv1_1

2017-1-9 杜世伟 Python

scrapy startproject pachong
Traceback (most recent call last):
  File "/bin/scrapy", line 9, in <module>
    load_entry_point('Scrapy==1.5.0', 'console_scripts', 'scrapy')()
  File "build/bdist.linux-x86_64/egg/pkg_resources.py", line 339, in load_entry_point
    return False    # egg isn't macosx or legacy darwin
  File "build/bdist.linux-x86_64/egg/pkg_resources.py", line 2470, in load_entry_point
    return self.__dep_map
  File "build/bdist.linux-x86_64/egg/pkg_resources.py", line 2184, in load
    part = replace(part,part)
  File "/usr/lib/python2.7/site-packages/scrapy/cmdline.py", line 9, in <module>
    from scrapy.crawler import CrawlerProcess
  File "/usr/lib/python2.7/site-packages/scrapy/crawler.py", line 7, in <module>
    from twisted.internet import reactor, defer
  File "/usr/lib64/python2.7/site-packages/twisted/internet/reactor.py", line 38, in <module>
    from twisted.internet import default
  File "/usr/lib64/python2.7/site-packages/twisted/internet/default.py", line 56, in <module>
    install = _getInstallFunction(platform)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/default.py", line 44, in _getInstallFunction
    from twisted.internet.epollreactor import install
  File "/usr/lib64/python2.7/site-packages/twisted/internet/epollreactor.py", line 24, in <module>
    from twisted.internet import posixbase
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 18, in <module>
    from twisted.internet import error, udp, tcp
  File "/usr/lib64/python2.7/site-packages/twisted/internet/tcp.py", line 28, in <module>
    from twisted.internet._newtls import (
  File "/usr/lib64/python2.7/site-packages/twisted/internet/_newtls.py", line 21, in <module>
    from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
  File "/usr/lib64/python2.7/site-packages/twisted/protocols/tls.py", line 63, in <module>
    from twisted.internet._sslverify import _setAcceptableProtocols
  File "/usr/lib64/python2.7/site-packages/twisted/internet/_sslverify.py", line 38, in <module>
    TLSVersion.TLSv1_1: SSL.OP_NO_TLSv1_1,

安装Scrapy之后验证报错：
AttributeError: 'module' object has no attribute 'OP_NO_TLSv1_1'
后来查资料发现是Twisted版本的问题。
原因是使用pip install Scrapy自动安装了较高版本的Twisted，
解决办法：
查看cmd中Requirement already satisfied中对应的Twisted版本，比如是13.1.0，然后输入：
pip install twisted==13.1.0
就可以啦~

标签: python pip scrapy twisted

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