Tensorflow offline build from source on CentOS 7

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Try follow Installing TensorFlow on CentOS 7 Linux

CentOS 7 box which has no internet connectivity.

Build it on Pc with internet connection use Anaconda/Miniconda(which is stand alone distribution).
This mean after build TensorFlow you can use it from usb stick(or copy Anacond3 folder over) on Pc with no internet connectivity.
Anaconda comes with conda(there own package manager) but also pip so you can follow tutorial in link given.