Python flask-cors 导入错误 : No module named 'flask-cors' Raspberry pi

Question

我正在按照此处文档中的 flask-cors 教程进行操作: https://pypi.python.org/pypi/Flask-Cors

但是当我在我的树莓派上安装它并运行我的 python 应用程序时，我收到了这个错误

Traceback (most recent call last):
File "app.py", line 3, in <module>
from flask_cors import CORS, cross_origin
ImportError: No module named 'flask_cors'

这是我的 python 脚本:

from flask import Flask
from Main import main
from flask_cors import CORS, cross_origin    
app = Flask(__name__)
CORS(app)
main = main() 

@app.route('/turn' ,methods=['GET', 'OPTIONS'])
def index():
  return main.turn()

if __name__ == '__main__': 
  app.run(debug=True, host='0.0.0.0')

Answer 1

终于对我有用了

pip install -U flask-cors