Exception with expose_tracebacks=True and unicode in traceback

[jkmnt]

Not so important since the expose_tracebacks is not for production, but anyway:

if expose_tracebacks is true and there is non-ascii in exception trace,
waitress fails to encode the error body:

class ErrorTask(Task): def execute(self): self.write(tobytes(body))

Socket is left open and client stucks.

waitress 1.4.4, windows

[stevepiercy]

@jkmnt would you please provide a code sample that reproduces this issue?

Also would you try it against Waitress 2.0.0, assuming your code is for Python 3?

[jkmnt]

Tried against the waitress 2.0.0, same result.
The minimal sample reproducing the problem:

import waitress

def application(environ, start_response):
    body = b'Hello world!\n'
    status = '200 OK'
    headers = [('Content-type', 'text/plain')]
    start_response(status, headers)
    raise Exception('here we are' + chr(8364))
    return [body]

waitress.serve(application, port=22222, expose_tracebacks=True)