If you want the cutting-edge version of ChipWhisperer, you can clone the repository. If you have Git already set up, this is easy to do:
git clone https://github.com/newaetech/chipwhisperer.git git checkout develop cd chipwhisperer/software python setup.py develop --user
The user flag installs ChipWhisperer in the user's local python site-packages directory. Note bleeding-edge development is done on the "develop" branch, which you probably want if you are trying GIT.
You may also want the OpenADC software, which is necessary to build new firmware for the ChipWhisperer FPGA. This is unnecessary for most users. If you need it:
cd .. git submodule init git submodule update cd openadc/controlsw/python python setup.py develop --user