Python flask.cli.NoAppException：无法导入“flaskr.flaskr”
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flask.cli.NoAppException: Could not import "flaskr.flaskr"
提问by DavidGodwin
I'm working through: http://flask.pocoo.org/docs/1.0/tutorial/
我正在解决：http: //flask.pocoo.org/docs/1.0/tutorial/
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.
我已经在 /flaskr/ 目录中编写了__init__.py（代码在这里：http: //codepad.org/4FGIE901），设置了一个名为“venv”的虚拟环境并安装了 Flask。
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)
然后我运行了这些命令——在命令行上，在flaskr目录中？——正如“运行应用程序”所建议的那样：( export FLASK_APP=flaskr, export FLASK_ENV=development, flask run)
What I should see is Hello, World!
我应该看到的是 Hello, World!
Instead, I'm presented with the following errors:
相反，我遇到了以下错误：
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".
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?
简单地说，我不确定我应该如何响应或修复这样的错误。也许我在 venv 中安装的内容与此特定项目的要求不匹配？
Like this person: Could not Import Pandas: TypeError
喜欢这个人：无法导入熊猫：TypeError
Flask:
烧瓶：
/Users/David/Desktop/flaskr/venv/bin/Flask- Version: 1.0.2
/Users/David/Desktop/flaskr/venv/bin/Flask- 版本：1.0.2
Pip:
点：
from /Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages (python 3.6)- Version: 9.0.1
from /Users/David/Desktop/flaskr/venv/lib/python3.6/site-packages (python 3.6)- 版本：9.0.1
Python:
Python：
/Users/David/Desktop/flaskr/venv/bin/python- Version: 3.6.0
/Users/David/Desktop/flaskr/venv/bin/python- 版本：3.6.0
回答by Garden Li
I think you are in the wrong folder. You probably did:
我认为你在错误的文件夹中。你可能做了：
cd flask_tutorial/flaskr
You need to go up to the tutorial folder:
您需要转到教程文件夹：
cd ..
You should flask runin the flask_tutorialfolder rather than flask_tutorial/flaskrbecause you want to import flaskrfrom that folder, not flaskr/flaskr(which doesn't exist).
您应该flask run在flask_tutorial文件夹中，而不是flask_tutorial/flaskr因为您想flaskr从该文件夹导入，而不是flaskr/flaskr（不存在）。
回答by Mega sharif
Those running flask for the first time ..This works well for windows
那些第一次运行烧瓶的人..这适用于 Windows
find the location of your folder use cmd please 'mine is cd /users/hp/Desktop'
使用 cmd 找到您文件夹的位置，请“我的是 cd /users/hp/Desktop”
cd /users/hp/Desktop>set FLASK_APP=hello.py -->file name
cd /users/hp/Desktop>set FLASK_ENV=development
cd /users/hp/Desktop>flask run
cd /users/hp/Desktop>set FLASK_APP=hello.py -->file name
cd /users/hp/Desktop>set FLASK_ENV=development
cd /users/hp/Desktop>flask run
