Python 3 preparation: make fallback SysCallError an actual exception class. The code defines a fallback version of SysCallError when import of OpenSSL.SSL. But in Python 3, defining it as None and then using in "except" statements results in: TypeError: catching classes that do not inherit from BaseException is not allowed

def preset_new(db, cl, nodeid, newvalues):
    """ Make sure the status is set on new issues"""

    if 'status' in newvalues and newvalues['status']:
        return

    new = db.status.lookup('new')
    newvalues['status'] = new


def init(db):
    # fire before changes are made
    db.issue.audit('create', preset_new)