我已经在我的 ubuntu 18.04 中安装了 python 2.7 和 python 3.7 但是当我
键入 python 它显示
Command 'python' not found, but can be installed with:
sudo apt install python3
sudo apt install python
sudo apt install python-minimal
You also have python3 installed, you can run 'python3' instead.
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但我已经安装了python。