ste0: 切换python版本 [root@localhost lxml]# mv /usr/bin/python2.7.5 /usr/bin/python #切换python版本 step1:安装依赖包1 [root@localhost opt]# yum -y install libxslt-devel #注意:只能在默认的python2.7下运行 step2:安装依赖包1 [root@localhost opt]# yum -y install libffi-devel #注意:只能在默认的python2.7下运行 step3:切换python版本 [root@localhost opt]# mv /usr/bin/python2.7.5 /usr/bin/python [root@localhost bin]# mv /usr/bin/python /usr/bin/python2.7.5 [root@localhost bin]# ln -s /usr/local/bin/python3.4 /usr/bin/python 此时,python默认的版本为python3.4 step4:安装scrapy [root@localhost opt]# pip3.4 install scrapy 注意:前面要求setuptools、pip包安装成功,python3.4安装时setuptools和pip会默认安装 step5:查看效果 [root@localhost opt]# pip3.4 freeze attrs==15.2.0 cffi==1.5.2 cryptography==1.3.1 cssselect==0.9.1 cycler==0.10.0 idna==2.1 lxml==3.6.0 matplotlib==1.5.1 numpy==1.11.0 pyasn1==0.1.9 pyasn1-modules==0.0.8 pycparser==2.14 pyOpenSSL==16.0.0 pyparsing==2.1.1 python-dateutil==2.5.2 pytz==2016.3 queuelib==1.4.2 scipy==0.17.0 Scrapy==1.0.5 service-identity==16.0.0 six==1.10.0 Twisted==16.0.0 w3lib==1.13.0 zope.interface==4.1.3 至于python2.7.5等类似的版本,可以参看:https://www.douban.com/group/topic/51645204/ 主要步骤皆为: 1. yum -y install libxslt-devel 2. yum -y install libffi-devel 3. pip install scrapy (责任编辑:IT) |