bug: cleaner error message on OptionUnsetError in initialize We got a scary traceback when a: roundup.configuration.OptionUnsetError exception was raised during tracker.init(). Capture the exception and raise a UsageError that is printed more cleanly. It now reads: Error: In tracker/config.ini - MAIL_DOMAIN is not set and has no default

try:
    # Python 3+
    from ssl import SSLError
except (ImportError, AttributeError):
    # Python 2.5-2.7
    from socket import sslerror as SSLError