pip install flask failed and reported an error

Don't talk nonsense, just start working!

pip install flask failed

Solution 1: Change the mirror image

pip install flask -i https://pypi.douban.com/simple 

Solution 2: It may be related to the pip version, update pip first, and then install flask

pip install --upgrade pip
pip install flask

Thank you for your support! Hope it is helpful to Lao Tie!