Robin Schoonover added the comment:
Fair enough, I misled myself.
However, and I feel like I'm getting really picky here, but it still doesn't
fulfill the paragraph I quoted:
def application(environ, start_response):
start_response('200 OK',
[('Content-type', 'text/plain')])
yield b''
try:
# produce an exception tuple, so we can re-call s_r
raise RuntimeError
except RuntimeError:
# Headers shouldn't have been sent, but they were
# so this will throw:
start_response('200 OK',
[('Content-type', 'text/plain')],
sys.exc_info())
yield b'error data or whatever'
But if async support a foregone conclusion anyway, is it worth bothering
complying with that odd requirement?
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<http://bugs.python.org/issue21890>
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