如何为 python 2.7 安装 pip？答案

【问题标题】：how to install pip for python 2.7?如何为 python 2.7 安装 pip？
【发布时间】：2019-06-13 20:02:32
【问题描述】：

我按照链接@https://linuxize.com/post/how-to-install-pip-on-centos-7/#2-install-pip安装了pip，但是系统自带的python 2.6安装了，python 2.7怎么安装呢？

sudo yum install epel-release
Loaded plugins: security
Setting up Install Process
Package epel-release-6-8.noarch already installed and latest version
Nothing to do

安装点子

 sudo yum install python-pip
Loaded plugins: security
Setting up Install Process
Package python-pip-7.1.0-1.el6.noarch already installed and latest version
Nothing to do

pip 版本

pip --version
pip 7.1.0 from /usr/lib/python2.6/site-packages (python 2.6)

机器配置：

LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: OracleServer
Description:    Oracle Linux Server release 6.6
Release:    6.6
Codename:   n/a

/usr/本地

【问题讨论】：

Can't install pip on python 2.7, only python 3的可能重复
stackoverflow.com/search?q=%5Bpip%5D+install+pip+Python+2.7
以上都没有解决我的问题...就像我说的使用 OracleServer 6.6
接受的答案无处不在，Linux、w32、MacOS……
@phd 这给了我一个错误$ python get-pip.py pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available. Collecting pip .. Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)) - skipping Could not find a version that satisfies the requirement pip (from versions: ) No matching distribution found for pip

标签： python pip centos

【解决方案1】：

尝试手动安装：

wget -P ~/.local/lib https://bootstrap.pypa.io/pip/2.7/get-pip.py
python2.7 ~/.local/lib/get-pip.py --user 
#if using bash
printf "\nPATH=\$PATH:~/.local/bin/" >> ~/.bashrc
source ~/.bashrc

【讨论】：

这在第 2 步失败，错误为 Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)) - skipping Could not find a version that satisfies the requirement pip (from versions: ) No matching distribution found for pip
如何摆脱这个 SSL 错误？这一直是我的障碍
你自己编译过python吗？你有 OpenSSL 吗？见 fx stackoverflow.com/questions/44290926/…
不，我没有自己编译python...我似乎无法在/usr/local下找到python源，我如何找到源？
已更新为：bootstrap.pypa.io/pip/2.7/get-pip.py。您帖子中的网址现在仅适用于 Python3

【解决方案2】：

pip 已放弃对 python 2.7 的支持。如果您仍想将它用于 python 2.7，降级 pip 将帮助您：

sudo easy_install pip==20.3.4

【讨论】：

【解决方案3】：

只需进入终端并输入：

sudo apt-get install python-pip

我知道这至少适用于树莓派。

【讨论】：