GridOut object has no attribute X about txmongo HOT 11 CLOSED

from twisted.internet import defer                                                              
from twisted.internet import reactor                                         

import txmongo                                                               
from txmongo.gridfs import GridFS                                            


@defer.inlineCallbacks                                                       
def main():                                                                  
    mongo = yield txmongo.MongoConnectionPool()                              
    db = mongo.test                                                          

    gfs = GridFS(db, "fs")                                                   
    ifp = gfs.new_file(filename="foobar.txt", content_type="text/plain")     
    yield ifp.write("just another victim")                                   
    yield ifp.close()                                                        

    ofp = yield gfs.get_last_version("foobar.txt")                           
    contents = yield ofp.read()                                              

    print "filename=%s\ncontent_type=%s\nlength=%s\ncontents=%s" % \         
            (ofp.filename, ofp.content_type, ofp.length, contents)           


if __name__ == "__main__":                                                   
    main().addCallback(lambda ign: reactor.stop())                           
    reactor.run()                                                            

$ mongofiles list                                                            
connected to: 127.0.0.1                                                      

$ python test.py                                                             
filename=foobar.txt                                                          
content_type=text/plain                                                      
length=19                                                                    
contents=just another victim                                                 

$ mongofiles list                                                            
connected to: 127.0.0.1                                                      
foobar.txt  19                                                               

$ mongofiles delete foobar.txt                                               
connected to: 127.0.0.1                                                      
done!