def __init__(self, config):
        config['cert'] = os.path.expanduser(config['cert'])
        if not os.path.exists(config['cert']):
            sys.exit('GCF Framework certfile %s doesnt exist' % config['cert'])
        config['key'] = os.path.expanduser(config['key'])        
        if not os.path.exists(config['key']):
            sys.exit(config['key'] % 'GCF Framework keyfile %s doesnt exist')
        if not config.has_key('verbose'):
            config['verbose'] = False
        self.config = config
        
        self.ch = make_client(config['ch'], config['key'], config['cert'])
        self.cert_string = file(config['cert'],'r').read()
        self.user_cred = None
dataset/ETHPy150Open fp7-ofelia/ocf/expedient/src/python/omnilib/frameworks/framework_gcf.py/Framework.__init__/swapped operands of `%`