我正试图用Werkzeug构建一个小型的WSGI应用程序。我遵循了这个tutorial它是如此简单明了。但是我遇到了这个错误:
File "/Users/username/my_app/assigment2/app.py", line 38, in __init__
self.database_engine = create_engine(db_uri)
File "/Users/Data/lib/python3.4/site-packages/sqlalchemy/engine/__init__.py", line 386, in create_engine
return strategy.create(*args, **kwargs)
File "/Users/../lib/python3.4/site-packages/sqlalchemy/engine/strategies.py", line 51, in create
dialect_cls = u.get_dialect()
AttributeError: 'function' object has no attribute 'get_dialect'
我已经导入了所有SqlAlchemy模块
^{pr2}$应用程序在应用程序的init失败。在
class App(object):
def __init__(self):
local.app = self
self.database_engine = create_engine(SQLALCHEMY_DATABASE_URI )
self.jinja_env = Environment(loader=PackageLoader('app', '/templates'))
self.dispatch = SharedDataMiddleware(self.dispatch, {'/static': STATIC_PATH})
def init_database(self):
metadata.create_all(self.database_engine)
def dispatch(self, environ, start_response):
local.app = self
request = Response(environ)
local.url_= adapter = url_map.bind_to_environ(environ)
#adapter = url_map.bind_to_environ(environ)
try:
endpoint, value = adapter.match()
handler = getattr(views, endpoint)
response = handler(request, **values)
except HTTPException as e:
response = e
return ClosingIterator(response(environ, strat_response),
[session.remove, local_manager.cleanup])
def __call__(self, environ, start_response):
return self.dispatch(environ, start_response)
数据库的uri如下所示
SQLALCHEMY_DATABASE_URI = 'postgresql://user:password@localhost:5432/name_db'
STATIC_PATH = path.join(path.dirname('/static'), 'static')
为什么我不能像这样创建我的应用程序:
def make_app():
my_app = app.App()
return my_app
我在古尼康跑
gunicorn -b 127.0.0.1:9000 app:make_app
新错误:
TypeError: make_app() takes 0 positional arguments but 2 were given
这是错误的:
有请求时会发生什么:
^{pr2}$但你真正想要的是:
将gunicorn调用改为如下所示:
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