python2.6安装pip
#wget https://bootstrap.pypa.io/2.6/get-pip.py
#python get-pip.py
python2.7及以上则
#wget https://bootstrap.pypa.io/get-pip.py
#python get-pip.py
【 官网】
https://pip.pypa.io/
【注意】
如果在Python2.6版本下安装，安装时会报语法错误。centos7以下的操作系统python默认版本是2.6.6
如果直接wget https://bootstrap.pypa.io/get-pip.py 后安装，会有如下异常提示：
Traceback (most recent call last):
File "get-pip.py", line 20651, in <module>
main()
File "get-pip.py", line 197, in main
bootstrap(tmpdir=tmpdir)
File "get-pip.py", line 82, in bootstrap
import pip._internal
File "/tmp/tmpfBIXe3/pip.zip/pip/_internal/__init__.py", line 42, in <module>
File "/tmp/tmpfBIXe3/pip.zip/pip/_internal/cmdoptions.py", line 16, in <module>
File "/tmp/tmpfBIXe3/pip.zip/pip/_internal/index.py", line 536
{str(c.version) for c in all_candidates},
^
SyntaxError: invalid syntax