How to use install command when python2 and python 3 both exist

1.Environment:
Python2 and Python 3 both exist
2.Purpose:
Install numpy

3.Problems:
Failed when using bellowing method.
How to use install command when python2 and python 3 both exist_第1张图片
4, How to solove this problem
4.1) Go to Dir :…/Python39/Scripts
4.2) Right click the blank page
How to use install command when python2 and python 3 both exist_第2张图片
4.3) Now the command pip install will not report error
How to use install command when python2 and python 3 both exist_第3张图片

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