install and upgrade scrapy

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install and upgrade scrapy
1\ uninstall old scrapy,if u need:
sudo uninstall Ccrapy

2\
sudo pip install Scrapy

when get fllowing info:
Requirement already satisfied (use --upgrade to upgrade): Twisted>=8.0 in /usr/local/lib/python2.7/dist-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): w3lib>=1.2 in /usr/local/lib/python2.7/dist-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): lxml in /usr/lib/python2.7/dist-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): pyOpenSSL in /usr/lib/python2.7/dist-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): zope.interface>=3.6.0 in /usr/lib/python2.7/dist-packages (from Twisted>=8.0->Scrapy)

then:

s easy_install --upgrade Twisted w3lib lxml pyOpenSSL zope.interface