win10下python3和python2共存环境 用pip安装一个包执行pip2 install xxx的时候报错Fatal error in launcher: Unable to create process using ''' 执行pip3 install xxx的时候报同样的错误Fatal error in launcher: Unable to create process using ''' 解决办法python2 -m pip install XXXpython3 -m pip
win7下python3和python2共存环境 用pip安装一个包执行pip2 install xxx的时候报错Fatal error in launcher: Unable to create process using '"' 执行pip3 install xxx的时候报同样的错误Fatal error in launcher: Unable to create process using '"' 解决办法python2 -m pip install XXXpython3 -m