Centos部署Python

Linux Python
Python
发布日期:   2025-04-25
更新日期:   2026-09-19
文章字数:   538
阅读时长:   3 分
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option process

download

yum install python3
yum install pip3
pip3 install requests
pip3 install requests==2.0.0
pip3 install https://github.com/pypa/virtualenv/tarball/1.9.X
pip3 install -E venv requests # 为*venv* 虚拟环境安装 requests
pip3 uninstall requests
pip3 install --upgrade requests
pip3 search requests
pip3 freeze > packageList.txt
pip3 install -r packageList.txt

虚拟环境

# demo.py
pip3 install virtualenv
virtualenv my_app # 创建my_app环境
virtualenv --python=/opt/python-3.3/bin/python my_app # 指定解释器
source my_app/bin/activate # 激活虚拟环境

运行WEB

from flask import Flask, request, jsonify
from gevent import pywsgi

# from settings import APP_PORT
# 创建一个服务
app = Flask(__name__)


@app.before_request
def before_request():
    print('Before Request')


@app.after_request
def after_request(response):
    print('After Request')
    return response


# @app.errorhandler(404)
# def page_not_found(e):
#     return 'This page does not exist', 404
@app.errorhandler(Exception)
def page_not_found(e):
    return '服务器异常，请稍后重试', 500


@app.route("/")
def hello():
    return "Hello World!"


@app.route("/user/<username>")
def username(username):
    return f"Hello {username}!"


@app.route("/get/user")
def getUser():
    username = request.args.get("username")
    return f"Hello {username}!"


# 创建一个接口 指定路由和请求方法 定义处理请求的函数
@app.route(rule='/demo/print', methods=['POST'])
def demo():
    body = request.get_json()
    response = {
        'isSuccess': True,
        'data': body.get('name'),
        'msg': '成功'
    }
    return response


if __name__ == '__main__':
    # 启动服务 指定主机和端口
    app.run(host='127.0.0.1', port=8000)
    # server = pywsgi.WSGIServer(('127.0.0.1', 8000), app)
    # print('server is running...')
    # server.serve_forever()
pip3 install gunicorn
vim gunicorn.conf.py # 新建配置文件
nohup gunicorn -c gunicorn.conf.py --name=demo demo:app &
# gunicorn.conf.py
bind = '0.0.0.0:8888'
workers = 1
threads = 1
reload=True

系统服务

vi /etc/systemd/system/xx.service
sudo systemctl daemon-reload
sudo systemctl start myapp
sudo systemctl enable myapp  # 开机自启
sudo systemctl status myapp
[Unit]
Description=app
After=network.target

[Service]
Type=simple
User=zwq
Group=zwq
WorkingDirectory=/homexx/scripts

# 使用绝对路径
ExecStart=/home/xx/venv/bin/python -m main

# 自动重启策略
Restart=on-failure
RestartSec=5

# 资源限制（可选）
LimitNOFILE=65536

# 日志
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target
Linux Python
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