flask-hot-reload

Flask Hot Reload

English | 中文

English

A Flask extension that automatically refreshes your browser when you make changes to your templates, static files, or Python code.

Installation

pip install flask-hot-reload

Quick Start

from flask import Flask, render_template
from flask_hot_reload import HotReload

app = Flask(__name__)

# Initialize hot reload with custom watch directories
hot_reload = HotReload(app, 
    includes=[
        'templates',  # template directory
        'static',     # static files directory
        '.'          # current directory
    ],
    excludes=[
        '__pycache__',
        'node_modules',
        '.git'
    ]
)

@app.route('/')
def index():
    return render_template('index.html')

if __name__ == '__main__':
    app.run(debug=True)

Features

• 🔄 Real-time browser refresh on file changes
• 📁 Monitor multiple directories
• 🚫 Exclude unwanted directories
• 🐍 Support for Python file hot reload
• 📝 Template file hot reload
• 🎨 Static file hot reload
• 🔌 WebSocket-based, low latency
• 🎯 Zero configuration needed

Configuration

Watch Directories

By default, Flask Hot Reload watches the templates and static directories. You can customize the watched directories:

hot_reload = HotReload(app, 
    includes=[
        'templates',
        'static',
        'src',
        'routes'
    ]
)

Exclude Directories

Exclude directories that don't need monitoring:

hot_reload = HotReload(app,
    excludes=[
        '__pycache__',
        'node_modules',
        '.git',
        'venv'
    ]
)

Requirements

• Python 3.7+
• Flask 2.0.0+
• Watchdog 2.1.0+
• Flask-Sock 0.4.0+
• Colorama 0.4.6+

中文文档

一个Flask扩展插件，当你修改模板、静态文件或Python代码时，浏览器会自动刷新。

安装

pip install flask-hot-reload

快速开始

from flask import Flask, render_template
from flask_hot_reload import HotReload

app = Flask(__name__)

# 使用自定义监控目录初始化热重载
hot_reload = HotReload(app, 
    includes=[
        'templates',  # 模板目录
        'static',     # 静态文件目录
        '.'          # 当前目录
    ],
    excludes=[
        '__pycache__',  # 排除Python缓存目录
        'node_modules', # 排除npm模块目录
        '.git'         # 排除git目录
    ]
)

@app.route('/')
def index():
    return render_template('index.html')

if __name__ == '__main__':
    app.run(debug=True)

特性

• 🔄 文件变更时实时刷新浏览器
• 📁 支持监控多个目录
• 🚫 可排除不需要监控的目录
• 🐍 支持Python文件热重载
• 📝 支持模板文件热重载
• 🎨 支持静态文件热重载
• 🔌 基于WebSocket，低延迟
• 🎯 零配置即可使用

配置

监控目录

默认情况下，Flask Hot Reload 会监控 templates 和 static 目录。你可以自定义监控目录：

hot_reload = HotReload(app, 
    includes=[
        'templates',
        'static',
        'src',
        'routes'
    ]
)

排除目录

排除不需要监控的目录：

hot_reload = HotReload(app,
    excludes=[
        '__pycache__',
        'node_modules',
        '.git',
        'venv'
    ]
)

环境要求

• Python 3.7+
• Flask 2.0.0+
• Watchdog 2.1.0+
• Flask-Sock 0.4.0+
• Colorama 0.4.6+

许可证

MIT License

作者

Blake Zhou ([e-mail])

链接

• GitHub 仓库
• 问题反馈