Lint Validation Middleware¶
New in version 0.5.
This module provides a middleware that performs sanity checks of the WSGI application. It checks that PEP 333 is properly implemented and warns on some common HTTP errors such as non-empty responses for 304 status codes.
This module provides a middleware, the
LintMiddleware. Wrap your
application with it and it will warn about common problems with WSGI and
HTTP while your application is running.
It’s strongly recommended to use it during development.
This middleware wraps an application and warns on common errors. Among other thing it currently checks for the following problems:
- invalid status codes
- non-bytestrings sent to the WSGI server
- strings returned from the WSGI application
- non-empty conditional responses
- unquoted etags
- relative URLs in the Location header
- unsafe calls to wsgi.input
- unclosed iterators
Detected errors are emitted using the standard Python
warningssystem and usually end up on
from werkzeug.contrib.lint import LintMiddleware app = LintMiddleware(app)
Parameters: app – the application to wrap