Abstract Hack

I’ve released wsgistraw 0.1.1. I’ve added app_proxy, fixed a couple of inconsistencies with PEP 333. Here is the summary of changes:

• (+) Added public app_proxy class (former _app_proxy, thanks to Ian Bicking)
• (-) If an app uses write() then app_proxy invokes response.close() after iterating over it
• (-) If an app hasn’t invoked start_resposnse() before returning then app_proxy forces this invocation by calling response.next()

And that’s how the new app_proxy class works:

class lowercase(object):
    def __init__(self, app):
        self.app = app
    def __call__(self, environ, start_response):
        proxy = wsgistraw.app_proxy(self.app)
        status, headers, response = proxy(environ)
        start_response(status, headers)
        return (s.lower() for s in response)

I’ve just released my wsgistraw library v0.1. wsgistraw stands for WSGI without start_response and write. It is a tiny Python library that simplifies coding WSGI applications and middleware by removing start_response and write from signatures of functions.