1.软件包管理工具：pip
[xiaokang@localhost ~]$ sudo yum install python2-pip
查看pip版本
[xiaokang@localhost ~]$ pip -V (大v)
pip 8.1.2 from /usr/lib/python2.7/site-packages (python 2.7)
将pip源换成豆瓣源
[xiaokang@localhost ~]$ mkdir ~/.pip
[xiaokang@localhost ~]$ touch ~/.pip/pip.conf
[xiaokang@localhost ~]$ vim ~/.pip/pip.conf
#添加以下内容
[global]
timeout = 60
index-url = https://pypi.doubanio.com/simple
2.虚拟环境：virtualenv (设置多个环境，可以同时存在几个Python版本环境)
[xiaokang@localhost ~]$ sudo pip install virtualenv
创建xiaokang虚拟环境
[xiaokang@localhost ~]$ virtualenv xiaokang
No LICENSE.txt / LICENSE found in source
New python executable in /home/xiaokang/xiaokang/bin/python2
Also creating executable in /home/xiaokang/xiaokang/bin/python
Installing setuptools, pip, wheel...
done.
进入和退出到xiaokang虚拟环境中
[xiaokang@localhost ~]$ source xiaokang/bin/activate
(xiaokang) [xiaokang@localhost ~]$ python
Python 2.7.5 (default, Jun 20 2019, 20:27:34)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
(xiaokang) [xiaokang@localhost ~]$ which python
~/xiaokang/bin/python
[xiaokang@localhost ~]$ source xiaokang/bin/activate # 进入到xiaokang虚拟环境
(xiaokang) [xiaokang@localhost ~]$ deactivate # 退出虚拟环境
安装requests依赖包
(xiaokang2) [xiaokang@localhost ~]$ pip install requests
requests使用指南 https://2.python-requests.org//zh_CN/latest/user/quickstart.html
安装flask框架
(xiaokang) [xiaokang@localhost ~]$ pip install -i https://pypi.doubanio.com/simple/ --trusted-host pypi.doubanio.com flask
配置flask并启动
(xiaokang) [xiaokang@localhost ~]$ mkdir python
(xiaokang) [xiaokang@localhost ~]$ cd python/
(xiaokang) [xiaokang@localhost python]$ touch index.py
(xiaokang) [xiaokang@localhost python]$ vim index.py
# 添加以下内容
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello World!'
if __name__ == '__main__':
app.run(host='0.0.0.0')
# 启动flask
(xiaokang) [xiaokang@localhost python]$ python index.py
以上就是Python环境搭建和项目部署实际过程，可以在浏览器访问http://192.168.0.1:5000，页面出现 Hello World
