Question

我正在使用flask和flask-restful开发REST API。我目前在flask-cli上遇到问题，因为在公司环境中无法使用该应用程序运行。可能是什么问题？

在企业中，我们将conda环境用于python 3应用程序。目前api的环境由运行在CentOS 7上的带有烧瓶1.0.2和带有烧瓶的0.37的python 3.6.8组成，即使是通过conda的需求或enviroment.yml重新创建环境，我也无法运行该应用程序，不同从我的个人计算机ubuntu 18.04上，使用miniconda3和env python 3.6.8，具有相同的flask软件包，我可以进行测试而没有问题。

错误：

import socket
import select
import msvcrt

IP = "192.168.1.154"
port = 123


sockets = []


def write():
    pass


def main():
    sock = socket.socket()
    sock.connect((IP, port))
    while True:
        rlist, wlist, xlist = select.select(sockets, sockets, [])
        for current_socket in rlist:
            if current_socket is sock:
                data = current_socket.recv(1024)
                print(data)
            else:
                sockets.append(current_socket)
        write()


if __name__ == '__main__':
    main()

脚本主要：

  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/cli.py", line 235, in locate_app
    __import__(module_name)
ModuleNotFoundError: No module named 'main'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/cli.py", line 325, in __call__
    self._flush_bg_loading_exception()
  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/cli.py", line 313, in _flush_bg_loading_exception
    reraise(*exc_info)
  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/cli.py", line 302, in _load_app
    self._load_unlocked()
  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/cli.py", line 317, in _load_unlocked
    self._app = rv = self.loader()
  File "/home/user/opt/miniconda3/envs/comands/lib/python3.6/site-packages/flask/cli.py", line 372, in load_app
    app = locate_app(self, import_name, name)
  File "/home/user/opt/miniconda3/envs/comands/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 "main".

脚本 init .py：


from app import create_app, db
from flask_migrate import Migrate

app = create_app('development')
Migrate(app,db)

@app.shell_context_processor
def shell_context():
    return dict(
        app = app,
        db=db
    )

我希望能够在公司环境中运行测试和运行应用程序。因为即使使用from flask_restful import Api from flask import Flask from flask_sqlalchemy import SQLAlchemy from config import config db = SQLAlchemy() def create_app(config_name): app = Flask(__name__) app.config.from_object(config[config_name]) api=Api(app, prefix="/api/v1") db.init_app(app) from app.resources.catcherDicts import Catcher api.add_resource(Catcher, "/catcher") return app命令export FLASK_APP = main.py导出应用程序路径也无法运行该应用程序。

Answer 1

错误：

ModuleNotFoundError：没有名为“ main”的模块

告诉您无法从main.py模块中找到cli.py模块。发生这种情况的原因是，使用以下代码行：main.py将进入应用程序的入口点设置为export FLASK_APP = main.py。我怀疑此环境变量不正确，我将尝试直接运行您的条目文件并查看其是否有效，如果可以，则您的环境变量不正确。此外，如果您不是从包含入口点的目录中运行文件，请确保<path>的设置正确，否则flask run无效。

希望有帮助！

Flask-CLI无法运行应用程序？

1 个答案: