hello!it's me again(awkward)!

[ANYMS-A]

In your article, you said
Then to install the package:

pip3 uninstall tensorflow
sudo -H pip3 install /tmp/tensorflow_pkg/tensorflow-1.0.0-XXXXXX.whl

I wanna know why I have to uninstall my tensor flow ,if I uninstall it, how can I use it after that?

[hollance]

It uninstalls the previous version of TensorFlow first, and then installs the one you compiled by hand. If you don't uninstall the previous version you may get error messages or it may not actually do anything because it already thinks you have that version.