我正在使用在 Bluemix 上运行 Flask 的 Python 应用程序。我知道如何将对象存储与 swiftclient 模块一起使用来创建容器并在其中保存文件,但是如何转储其中包含的 joblib 或 pickle 文件?以及如何将它加载回我的 Python 程序中?
这是存储简单文本文件的代码。
import swiftclient
app = Flask(__name__)
CORS(app)
cloudant_service = json.loads(os.environ['VCAP_SERVICES'])['Object-Storage'][0]
objectstorage_creds = cloudant_service['credentials']
if objectstorage_creds:
auth_url = objectstorage_creds['auth_url'] + '/v3' #authorization URL
password = objectstorage_creds['password'] #password
project_id = objectstorage_creds['projectId'] #project id
user_id = objectstorage_creds['userId'] #user id
region_name = objectstorage_creds['region'] #region name
def predict_joblib():
print('satart')
conn = swiftclient.Connection(key=password,authurl=auth_url,auth_version='3',os_options={"project_id": project_id,"user_id": user_id,"region_name": region_name})
container_name = 'new-container'
# File name for testing
file_name = 'requirment.txt'
# Create a new container
conn.put_container(container_name)
print ("nContainer %s created successfully." % container_name)
# List your containers
print ("nContainer List:")
for container in conn.get_account()[1]:
print (container['name'])
# Create a file for uploading
with open(file_name, 'w') as example_file:
conn.put_object(container_name,file_name,contents= "",content_type='text/plain')
# List objects in a container, and prints out each object name, the file size, and last modified date
print ("nObject List:")
for container in conn.get_account()[1]:
for data in conn.get_container(container['name'])[1]:
print ('object: {0}t size: {1}t date: {2}'.format(data['name'], data['bytes'], data['last_modified']))
# Download an object and save it to ./my_example.txt
obj = conn.get_object(container_name, file_name)
with open(file_name, 'w') as my_example:
my_example.write(obj[1])
print ("nObject %s downloaded successfully." % file_name)
@app.route('/')
def hello():
dff = predict_joblib()
return 'Welcome to Python Flask!'
@app.route('/signUp')
def signUp():
return 'signUp'
port = os.getenv('PORT', '5000')
if __name__ == "__main__":
app.debug = True
app.run(host='0.0.0.0', port=int(port))