Ian Bicking ha scritto: > Manlio Perillo wrote: >> The WSGI spec requires the response headers and sequence items to be, >> respectively, List of Tuples and Strings. >> >> However only for the response headers it explicitly requires them to >> be a Python List, i.e type(response_headers) is ListType. >> >> What about the other objects? >> >> In the current implementation of WSGI for Nginx I always use >> Py[Type]_Check, and not Py[Type]_CheckExact. > > All of the types are required to be exactly as defined, not subclasses > or None. But servers are not required to actually test this. > wsgiref.validate does test for exactly these types, but it's acceptable > for Nginx to just access the data without checking its exact type. >
Ok, thanks. However it is not a problem to use Py[Type]_Check instead of Py[Type]_CheckExact (and it should not be slower), so if the types are required to be exactly as defined I think it is better to do the exact check. In mod_wsgi for Nginx I'm doing a lot of checks (as an example I even check if the write callable is called from within application iterable) Manlio Perillo _______________________________________________ Web-SIG mailing list Web-SIG@python.org Web SIG: http://www.python.org/sigs/web-sig Unsubscribe: http://mail.python.org/mailman/options/web-sig/archive%40mail-archive.com
