pip:ec2 AMI上的python2.7安装错误

Question

用get-pp.py 安装pip后

wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py

当我尝试用pip -V检查安装时，我收到了这个错误

Traceback (most recent call last):
File "/usr/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2927, in <module>
@_call_aside
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2913, in _call_aside
f(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2940, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 637, in _build_master
return cls._build_from_requirements(__requires__)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 650, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 829, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pip==6.1.1' distribution was not found and is required by the application

然而，这适用于python2.6。

我失踪的原因是什么？

编辑：

我正在使用AmazonLinuxAMI版本2016.03，我想它是基于一些RedHat发行版

Answer 1

尝试安装virtualenv以独立管理您的版本：

sudo apt-get install virtualenv

创建虚拟环境

virtualenv newvenv

运行您的新环境

source newvenv/bin/activate

最后

wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py

Answer 2

可能您有一个Ubuntu映像。在安装新版本之前，您需要先删除系统pip版本。

在你的命令之前做一个apt-get-remove-python-pip，你就会安装一个合适的pip。

对于python3:apt-get删除python3 pip

同样的情况可能适用于基于CentOS的ones，但你必须使用百胜而不是apt-get-