Bug 790458

unless I'm missing something SSL.SysCallError() is actually OpenSSL.SSL.SysCallError() ... which isn't a YumBaseError().

According to http://pyopenssl.sourceforge.net/pyOpenSSL.txt it's defined as:

   exception SysCallError
          The SysCallError occurs when there's an I/O error and OpenSSL's
          error queue does not contain any information. This can mean two
          things: An error in the transport protocol, or an end of file
          that violates the protocol. The parameter to the exception is
          always a pair (errnum, errstr).

...which probably means it inherits from IOError ... so uses this path in yum:

    def exIOError(e):
        if e.errno == 32:
            logger.critical(_('\n\nExiting on Broken Pipe'))
        else:
            logger.critical(_('\n\n%s') % exception2msg(e))
        if unlock(): return 200
        return 1

...which does:

def exception2msg(e):
    """ DIE python DIE! Which one works:
        to_unicode(e.value); unicode(e); str(e); 
        Call this so you don't have to care. """
    try:
        return to_unicode(e.value)
    except:
        pass

    try:
        return unicode(e)
    except:
        pass

    try:
        return str(e)
    except:
        pass
    return "<exception failed to convert to text>"