[Web-SIG] PEP 444 (aka Web3)

[Roberto De Ioris]

Il giorno 16/set/2010, alle ore 08.37, Masklinn ha scritto:

>> I generally like it.
>> 
>> About the *.file_wrapper removal, i suggest
>> a PSGI-like approach where 'body' can contains a File Object.
>> 
>> def file_app(environ):
>>   fd = open('/tmp/pippo.txt', 'r')
>>   status = b'200 OK'
>>   headers = [(b'Content-type', b'text/plain')]
>>   body = fd
>>   return body, status, headers
>> 
> As far as I understand it, `body` is an iterable so there should not be any problem with sending a file through directly in this manner. Better, the web3 spec specifically mandates that if the `body` iterable has a `close` method it must be called on request completion (second-to-last paragraph in the specification details section [0]). So a File Object as a body is already completely handled by web3.
> 
> On the other hand, `body` has to yield bytes, so `fd = open('/tmp/pippo.txt', 'rb')` I think.
> 


In this case i do not see a need for wsgi.file_wrapper replacement.

The Web3 gateway/hosting system can manage File-Like Object the way it wants
(and transparently for the application)

--
Roberto De Ioris
http://unbit.it
JID: roberto at jabber.unbit.it