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我收到错误代码“from.app import Flask as Flask ModuleNotFoundError: No module named 'flask.app'” 我该如何纠正这个错误?

[英]I'm getting the error code "from .app import Flask as Flask ModuleNotFoundError: No module named 'flask.app'" How can I correct this error?

I'm getting the following error code:我收到以下错误代码:

from.app import Flask as Flask ModuleNotFoundError: No module named 'flask.app'

How can I correct this error?我该如何纠正这个错误?

from datetime import date
from flask import Flask, render_template

app = Flask(__name__)

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