Question

我正在为个人项目设置我的Flask应用程序，但收到一条错误消息，提示“ TypeError：'Flask'对象不可迭代”

我还添加了错误消息。

PS C:\Users\jason\Documents\project1> flask run
 * Serving Flask app "run.py"
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask_sqlalchemy\__init__.py:835: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future.  Set it to True or False to suppress this warning.
  'SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and '
Traceback (most recent call last):
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\jason\AppData\Local\Programs\Python\Python37-32\Scripts\flask.exe\__main__.py", line 9, in <module>
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 906, in main
    cli.main(args=args, prog_name=name)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 569, in main
    return super(FlaskGroup, self).main(*args, **kwargs)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 717, in main
    rv = self.invoke(ctx)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\click\decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 779, in run_command
    app = DispatchingApp(info.load_app, use_eager_loading=eager_loading)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 300, in __init__
    self._load_unlocked()
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 324, in _load_unlocked
    self._app = rv = self.loader()
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 381, in load_app
    app = locate_app(self, import_name, name)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\cli.py", line 236, in locate_app
    __import__(module_name)
  File "C:\Users\jason\Documents\project1\run.py", line 1, in <module>
    from app import app
  File "C:\Users\jason\Documents\project1\app\__init__.py", line 19, in <module>
    Session(app)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\flask\sessions.py", line 79, in __init__
    super(SecureCookieSession, self).__init__(initial, on_update)
  File "c:\users\jason\appdata\local\programs\python\python37-32\lib\site-packages\werkzeug\datastructures.py", line 2031, in __init__
    dict.__init__(self, initial or ())
TypeError: 'Flask' object is not iterable

这是我的奔跑。py

    from app import app

    if __name__ == '__main__':
        app.run(debug=True)

，还有app / init .py

    import os

    from flask import Flask, Session
    from flask_sqlalchemy import SQLAlchemy
    from sqlalchemy import create_engine
    from sqlalchemy.orm import scoped_session, sessionmaker

    app = Flask(__name__)

    # Setting up secret keys
    SECRET_KEY = os.urandom(32)
    app.config['SECRET_KEY'] = SECRET_KEY

    # Configure session to use filesystem
    app.config["SESSION_PERMANENT"] = False
    app.config["SESSION_TYPE"] = "filesystem"
    app.config['SQLALCHEMY_DATABASE_URI'] = 'postgres://xxxx:yyyy@ec2-some-ip.compute-1.amazonaws.com:5432/zzzzz'
    db = SQLAlchemy(app)
    Session(app)

    from app import routes, form, models

你们在run.py文件和 init .py文件之间看到任何问题吗？我真的很困惑typeError的意思，因为它没有指出问题的确切出处！

烧瓶“ TypeError：'烧瓶'对象不可迭代”

0 个答案: