文档
- Flask官方文档 en | zh
- Explore Flask en | zh-1 | zh-2
- The Flask Mega-Tutorial en | zh
- Flask Web开发
- Discover Flask 扫了一眼, 发现基本是视频教程
- Awesome Flask Flask资源汇总大全
Miguel Grinberg的博客内容很多, 上面的The Flask Mega-Tutorial就是其博客上的在线教程, Flask Web开发是他出的书, 有中文版.
Flask-SQLAlchemy
逆序排序desc:
Blog.query.order_by(Blog.date.desc()).all()
或者:
Blog.query.order_by(db.desc(Blog.date)).all()
部署
Nginx
server { listen 80; server_name localhost; location / { include uwsgi_params; uwsgi_pass unix:/tmp/uwsgi.sock; } }
或者参考Flask - uWSGI文档:
location / { try_files $uri @yourapplication; } location @yourapplication { include uwsgi_params; uwsgi_pass unix:/tmp/uwsgi.sock; }
将yourapplication改为实际的包或模块名.
这里使用了location的@语法, 参考nginx文档
The prefix "@" specifies a named location. Such locations are not used during normal processing of requests, they are intended only to process internally redirected requests (see error_page, try_files).
uWSGI
安装uwsgi
执行命令:
uwsgi -s /tmp/uwsgi.sock --chmod-sock=666 --pythonpath /path/to/project/root --module yourmodulename --callable app
其中:
--pythonpath将模块(包)的父目录加到PYTHONPATH, 否则无法搜到相应的模块--moduleload a WSGI module--callableset default WSGI callable name, 一般因为app = Flask(__name__), 所以这里配置app--module yourmodulename --callable app也可以简写为-w yourmodulename:app
如果使用了virtualenv, 当没有active这个virtualenv时, 需要用H|--home|--virtualenv|--venv|--pyhome指定virtualenv的路径
也可以写成配置文件, 如ini, xml等:
$ cat uwsgi_example.ini [uwsgi] # application's base folder base = # python module to import app = blogwall module = %(app) # set PYTHONHOME/virtualenv # if use virtual, set this option #home = # add directory (or glob) to pythonpath pythonpath = %(base) # socket file's location socket = # permissions for the socket file chmod-socket = 666 # the variable that holds a flask application inside the module imported at line #6 callable = app # location of log files logto =
详细可参考uWSGI配置文档
其它一些参考文档:
- Serving Flask With Nginx en | zh
- Deploying Flask With Nginx 里面提到了使用supervisor管理
- flask-uwsgi Tutorial for setting up Flask with uWSGI + Nginx
FAQ
运行Flask自带的example flaskr, 提示:
AttributeError: 'Flask' object has no attribute 'cli'
原因是flask命令行方式在dev版才支持, issue