I tried aboove method on windows but nothing worked for me. I am getting the follwing error:
Traceback (most recent call last):
File "D:\python\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "D:\python\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "D:\airline0\env\Scripts\flask.exe\__main__.py", line 9, in
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 967, in main
cli.main(args=sys.argv[1:], prog_name="python -m flask" if as_module else None)
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 586, in main
return super(FlaskGroup, self).main(*args, **kwargs)
File "d:\airline0\env\lib\site-packages\click\core.py", line 782, in main
rv = self.invoke(ctx)
File "d:\airline0\env\lib\site-packages\click\core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "d:\airline0\env\lib\site-packages\click\core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "d:\airline0\env\lib\site-packages\click\core.py", line 610, in invoke
return callback(*args, **kwargs)
File "d:\airline0\env\lib\site-packages\click\decorators.py", line 73, in new_func
return ctx.invoke(f, obj, *args, **kwargs)
File "d:\airline0\env\lib\site-packages\click\core.py", line 610, in invoke
return callback(*args, **kwargs)
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 848, in run_command
app = DispatchingApp(info.load_app, use_eager_loading=eager_loading)
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 305, in __init__
self._load_unlocked()
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 330, in _load_unlocked
self._app = rv = self.loader()
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 388, in load_app
app = locate_app(self, import_name, name)
File "d:\airline0\env\lib\site-packages\flask\cli.py", line 240, in locate_app
__import__(module_name)
File "D:\airline0\application.py", line 9, in
engine = create_engine(os.getenv("postgresql://postgres:123456@localhost:5433/mydb"))
File "d:\airline0\env\lib\site-packages\sqlalchemy\engine\__init__.py", line 479, in create_engine
return strategy.create(*args, **kwargs)
File "d:\airline0\env\lib\site-packages\sqlalchemy\engine\strategies.py", line 56, in create
plugins = u._instantiate_plugins(kwargs)
AttributeError: 'NoneType' object has no attribute '_instantiate_plugins'
Can anyone help me to fix this