安装不同版本的Python

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#1 Created at ... [Delete] [Delete and Lock User]

Win下同时安装两个不兼容的版本，比如2.7和3.4会不会有什么冲突？用pip装第三方模块时他会不会自动识别？

#2 Created at ... [Delete] [Delete and Lock User]

Win可能有问题，因为都叫python.exe

Mac和Linux没问题，一个叫python/pip，一个叫python3/pip3

#3 Created at ... [Delete] [Delete and Lock User]

win 下把 python3 对应的 python.exe 改名为 python3.exe,然后都加入到环境变量,大概就可以了.

#4 Created at ... [Delete] [Delete and Lock User]

请问在Add python.exe to path时候，是勾选Entire feature will be installed on local hard drive吗？我的都勾选了还是安装不上