Implement a HTTPException.response(environ) method that returns a WSGIResponse

[damjan]

This methot creates a WSGIResponse from an HTTPException

[damjan]

I have a little concern about the line `resp.headers.update(dict(headers))'.

Although specifically, in this case `headers' will not have duplicate headers ... in genereal that code should probably be done with a for loop like this:

for key, value in headers:
    resp.headers.add(key, value)

[damjan]

I feel stupid for replying to myself, but ... The for loop above would make the content-type header appear twice, and nobody likes that (especially Pylons).

So best is probably,

resp.headers = resp.headers.fromlist(headers)

[ianb]

OK, changed to resp.headers = resp.headers.fromlist(headers) in r6283.