python No module named service_identity
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我试图更新Scrapy，当我试图检查版本时，我得到了以下错误
1 2 3 4 5 6 7 8 9 10 11 12 13 | C:\Windows\system32>scrapy version -v :0: UserWarning: You do not have a working installation of the service_identity module: 'No module named service_identity'. Please install it from <https://pyp i.python.org/pypi/service_identity> and make sure all of its dependencies are sa tisfied. Without the service_identity module and a recent enough pyOpenSSL to s upport it, Twisted can perform only rudimentary TLS client hostname verification . Many valid certificate/hostname mappings may be rejected. Scrapy : 0.22.2 lxml : 3.2.3.0 libxml2 : 2.9.0 Twisted : 14.0.0 Python : 2.7 (r27:82525, Jul 4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)] Platform: Windows-7-6.1.7601-SP1 |
请问这是什么？如何解决？
我正在使用Windows 7
1 | pip install service_identity |
它抱怨说你没有