flask.cli.NoAppException:无法导入"flaskr.flaskr"

本文介绍了flask.cli.NoAppException:无法导入"flaskr.flaskr"的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在研究: http://flask.pocoo.org/docs/1.0 /tutorial/

我在以下位置写了__init__.py(代码在这里: http://codepad.org/4FGIE901 ) /flaskr/目录中，设置一个名为"venv"的虚拟环境并安装Flask.

I've written __init__.py (code here: http://codepad.org/4FGIE901) in a /flaskr/ directory, set up a virtual environment called 'venv' and installed Flask.

然后我在命令行中在flaskr目录中运行了这些命令-如``运行应用程序''建议:(export FLASK_APP=flaskr，export FLASK_ENV=development，flask run)

I then ran these commands — on the command line, in the flaskr directory – as 'Run the application' advises: (export FLASK_APP=flaskr, export FLASK_ENV=development, flask run)

我应该看到的是Hello, World!

相反，出现以下错误:

Traceback (most recent call last):
  File "/Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages/flask/cli.py", line 330, in __call__
    rv = self._load_unlocked()

  File "/Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages/flask/cli.py", line 317, in _load_unlocked
    self._app = rv = self.loader()

  File "/Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages/flask/cli.py", line 372, in load_app
    app = locate_app(self, import_name, name)

  File "/Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages/flask/cli.py", line 246, in locate_app
    'Could not import "{name}".'.format(name=module_name)

flask.cli.NoAppException: Could not import "flaskr.flaskr".

简而言之，我不确定如何解决这样的错误或如何工作.也许我在venv中安装了什么以及这个特定项目需要什么?

Simply, I'm not sure how I should respond to or work upon fixing an error like this. Perhaps I have a mismatch in what I have installed in the venv and what this particular project requires?

喜欢此人:无法导入熊猫:TypeError

烧瓶:

/Users/David/Desktop/flaskr/venv/bin/Flask
版本:1.0.2

点:

from /Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages (python 3.6)
版本:9.0.1

Python:

/Users/David/Desktop/flaskr/venv/bin/python
版本:3.6.0

推荐答案

我认为您位于错误的文件夹中.您可能做到了:

I think you are in the wrong folder. You probably did:

cd flask_tutorial/flaskr

您需要进入教程文件夹:

You need to go up to the tutorial folder:

cd ..

您应该在flask_tutorial文件夹中而不是flask_tutorial/flaskr中放置flask run，因为您要从该文件夹而不是flaskr/flaskr(不存在)中导入flaskr.

You should flask run in the flask_tutorial folder rather than flask_tutorial/flaskr because you want to import flaskr from that folder, not flaskr/flaskr (which doesn't exist).

这篇关于flask.cli.NoAppException:无法导入"flaskr.flaskr"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！