python - flask 已安装，但 ModuleNotFoundError : No module named 'Flask'

Question

我在我的 Mac 上安装了 flask，

pip list | grep Flask
Flask       1.0.2   

但是当我执行一个 python 文件时，它会显示类似

的错误

from Flask import Flask, render_template
ModuleNotFoundError: No module named 'Flask'

python和flask使用的目录是

which python
/usr/bin/python

which flask
/Library/Frameworks/Python.framework/Versions/3.5/bin/flask

所以我想到运行 virtualenv，但我什至无法安装它并出现错误消息

s3transfer 0.1.8 requires botocore<2.0.0,>=1.3.0, which is not installed.

那我试试

sudo pip install "botocore<2.0.0,>=1.3.0"
Cannot uninstall 'six'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

发生这种情况是因为 python 版本冲突吗？有人可以帮忙吗？

Answer 1

flask 模块名称应小写。

from flask import Flask