麒麟系统升级Python 2.7.5到2.7.18实操过程

## 1. 官网下载python的tgz

https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tgz

## 2. 通过ftp工具上传安装包到指定的linux系统的目录

比如：/root

## 3. yum安装依赖包

yum install gcc* openssl openssl-devel ncurses-devel.x86_64 bzip2-devel sqlite-devel python-devel zlib

## 4. 编译安装

## 4.1 解压tgz

[root@python ~]# tar -zxvf Python-2.7.18.tgz

## 4.2 进入解压目录并开始安装

[root@python ~]# cd Python-2.7.18

[root@python Python-2.7.18]# ./configure

[root@python Python-2.7.18]# ./configure --enable-optimizations

[root@python Python-2.7.18]# make

[root@python Python-2.7.18]# make install

## 5. 备份python2.7.5和创建软连接

## 5.1 创建python2.7.18

[root@python Python-2.7.18]# mkdir -p /usr/python2.7.18

[root@python ~]# mv /root/Python-2.7.18 /usr/python2.7.18/

[root@python ~]# cd /usr/python2.7.18/

[root@python python2.7.18]# ls

Python-2.7.18

## 5.1 创建python2.7.5并创建软连接

[root@python ~]# mv /usr/bin/python /usr/bin/python2.7.5

[root@python ~]# ln -s /usr/python2.7.18/Python-2.7.18/python /usr/bin/python

[root@python ~]# /usr/bin/python -V

Python 2.7.18

## 6. 下载get-pip.py并安装pip

## 6.1 下载get-pip.py

[root@python python2.7.18]# wget https://bootstrap.pypa.io/pip/2.7/get-pip.py

--2024-08-13 16:14:08-- https://bootstrap.pypa.io/pip/2.7/get-pip.py

Resolving bootstrap.pypa.io (bootstrap.pypa.io)... 151.101.108.175, 2a04:4e42:1a::175

Connecting to bootstrap.pypa.io (bootstrap.pypa.io)|151.101.108.175|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1908226 (1.8M) [text/x-python]

Saving to: ‘get-pip.py’

get-pip.py 100%[=============================================================================================================>] 1.82M 702KB/s 用时 2.7s

2024-08-13 16:17:27 (184 KB/s) - 已保存 “/Package/python_package/python_pip-3.7/get-pip.py” [2635841/2635841])

## 6.2 安装pip

# 备注：用新的python2.7.18安装pip

[root@hejuns python2.7.18]# /usr/bin/python -V

Python 2.7.18

[root@hejuns python2.7.18]# /usr/bin/python get-pip.py

Collecting pip<21.0

Using cached pip-20.3.4-py2.py3-none-any.whl (1.5 MB)

Collecting setuptools<45

Using cached setuptools-44.1.1-py2.py3-none-any.whl (583 kB)

Collecting wheel

Using cached wheel-0.37.1-py2.py3-none-any.whl (35 kB)

Installing collected packages: pip, setuptools, wheel

Successfully installed pip-20.3.4 setuptools-44.1.1 wheel-0.37.1

### 谨慎升级python